@ABarbershopBarber There's water all over the place - the iron chloride and ammonia solutions are all mostly water. But as I mention in the video, the smoke you see is much more likely to be ammonium chloride from the reaction of ammonia vapors with leftover hydrochloric acid in the iron chloride solutions.
oleic acid is also the chemical ants produce when their exoskeletons begin to rot. when other ants smell it they carry stuff with oleic acid on it to a waste pile.
@stbmoo I believe you're thinking of formic acid. Oleic is acid is sunflower oil. I've crushed a lot of ants in my day, and not one of them has smelled like sunflowers.
nope. formic acid is what they produce as a defense. they smell like that when you crush them because youre popping the chamber that holds it. oleic acid is what their shells produce as they decay.
Is there anyway to skip the boiling off ammonia for one hour step? Or at least shorten the time? If I got the magnetite from the FeCl2 and FeCl3, could I rinse off the ammonia with water with a strong magnet holding the magnetite in place?
@Kardasik Oh, and, as I got it, you have Fe3O4, and oleate ions dissolved in kerosene, as well as water at the end, so where does the Cl go? Does it escape as Cl2 or HCl gas or stays in the water solution?
@hilers72652 Huh, I'd never thought of that! That may have been another reason things didn't go so well, with the magnetite being attracted to the bottom of the flask if wouldn't stir well anyway. Very interesting, I need to retry this one!
@haynerbass It's worth a try, but remember that you also need the oleic acid. You've got 2 of the 3 parts necessary - the magnetic material (magnetite) and carrier fluid (kerosene) - but you're missing the surfactant (oleic acid). If you don't have that I know it's a major component of olive oil, so you might be able to make a crude fluid using that.
I live in the south-western portion of British Columbia. There is magnetite in every creek I've look in. Could I just add kerosene to that? What do you suggest? Ingredient proportions?
@haynerbass Well, kerosene and oleic acid that is. You'd just replace my step of adding iron chlorides to ammonia with adding magnetite to water, I imagine. But this may not give great results, because the magnetite should be a small a particle size as possible. That's the advantage of creating it in situ like I do here, because it makes such tiny particles. If you have a ball mill you might give that a try with your magnetite and see how it goes. Good luck!
I have only just started looking at these really interesting fluids like non newtonian fluid and especially this one the ferro fluid it is really cool i wish i could make this stuff i'd be entertained for hours playing with them (with care of course) and is this stuff lethal just in case.
@SaintsRowFan224 Well I wouldn't call it 'lethal'. Of course you definitely don't want to drink it and you probably shouldn't get any on your hands. Since it's mostly kerosene it smells awful too. Just be careful with it and use standard lab safety practices.
@mrhomescientist so far the majority of the oleic acid i've seen has had either a red or yellow color, but urs is clear. what is the difference and will it affect the reaction?
@mrhomescientist How do you dispose of it? If you have access to some professional waste-disposal place(like in a laboratory), how would we get rid of it/ contact some people that would get rid of it for us?
@timeofknight That's a good question, I'm really not sure. I hadn't looked into it because I wanted to keep the results of my work! It's mostly kerosene, so I'd guess you could treat it the same as that type of waste. That's just speculation though.
@yours12342 Magnetism in materials generally arises from electron configuration and unpaired electrons. When the iron is bonded in a compound like this, then it's electron structure changes and it loses its magnetism. A lot of times that happens because these bonded atoms try to get a full outer shell, which means no unpaired electrons.
@MomoHasMuffins lol :p "Fe" just means "Iron", which is magnetic. FeCl(#) is Iron bound to chlorine, and I'm just curious as to why the iron-chlorine mixtures don't form the cool liquid spikes like the true "ferrofluid" does. (As far as i know, 'ferrofluid' more or less means 'iron-liquid')
when you added the last ingredient for suspending the compound i thought for a second there might be a very large bang to follow lol. How hot does the heat plate get?
You should consider not using heat on the mixture containing the magnetite, as it looses it's magnetic abiliies that way! If you really want to get rid of the ammonia, use a vacuum pump to drive of any excess ammonia...;)
Nice video though, and a pretty cool experiment too!
How did you get the hard-drive magnet off of the metal mounting thing? I thought they were epoxied on or something. I have 4 at home and need to get them off!
@99Chemicals That one was actually given to me like that. I would think the real problem would be it sticking to the mounting bracket via magnetic force - those things are strong! I would probably try prying it off with something non-magnetic like a stainless steel screwdriver or something. Never done it myself though, good luck!
@mrhomescientist I googled it and I found a youtube video, it says you can get a magnet of my bending the braket and using a screwdriver to pop it off. I tried it and it worked perfectly, the only problem is it took of most of the nickel plating of the back of the magnet. When I popped it off there was some residue, so im guessing that there was some kind of adhesive on the back of the magnet.
O yeah... I did the stir bar thing too lol when u droPped urs in, I did too hahaha btw put it in 100 ml of kerosene and it sill be all better, maybe do it twice with clean will help even more.
@GaryisaRoach Interesting question, I'm not sure. It would mainly depend on if kerosene expands or contracts, since that's the carrier fluid and makes up the bulk of the liquid.
@GaryisaRoach Whoops, responded to the wrong person! Ferrofluid stains pretty much everything it touches, and I don't know how to remove it beyond scrubbing with soap and water. I wouldn't worry about it though, it'll come off after a while on it's own like permanent marker.
@TheDarthChop Interesting question, I'm not sure. It would mainly depend on if kerosene expands or contracts, since that's the carrier fluid and makes up the bulk of the liquid.
@mrhomescientist no, it doesn't expand or contract due to the magnet properties, the iron oxide particles do not get closer or more far away from each other
@linda2503 I would just try and use a lot of stirring by hand with a glass or plastic rod, instead of what I did. I think that is they key to why mine didn't come out too well. I ended up with about 3oz of liquid. It helps to let it sit for a long time too, to allow all the water to settle out at the bottom. That improves it a bit. There are also simpler recipes out there using printer toner and vegetable oil. I'd recommend looking up a lot of videos on this first. Good luck with your project!
@linda2503 I would just try and use a lot of stirring by hand with a glass or plastic rod, instead of what I did. I think that is they key to why mine didn't come out too well. I ended up with about 3oz of liquid. It helps to let it sit for a long time too, to allow all the water to settle out at the bottom. That improves it a bit. There are also simpler recipes out there using printer toner and vegetable oil. I'd recommend looking up a lot of videos on this first. Good luck with your project!
I tried to make ferrofluid, but before I added the carrier, the magnetite made small globs at the bottom of the flask, and it would transfer to the carrier. Two things I'm doing differently form you. One, I am using methanol as my carrier, and two, I didn't use a magnetic stirrer (which is probably good), but I only stirred for about 3 minutes. Do you have any suggestions? I think I did everything right before that point. I used reagent grade oleic acid...
@elementguy27 That's strange. My first thought was to question the solubility of oleic acid in methanol, but I looked it up and that seems fine to use. The only thing I could think of is not enough stirring. Not using magnetic was a good idea, but the magnetite is pretty heavy so I'm thinking insufficient stirring doesn't let the oleic acid coat it as much as it needs to. That would mean the magnetite would remain insoluble in the carrier. Glad to hear others are trying this out - good luck!
Do we need to heat the mixture of the iron chlorides first then add to ammonia? or do we just mix them together at room temp. When i tried this no magnetite formed. Is this because the ammonia concentration was too weak?
@LiParkable I didn't do any heating in the beginning, it was all at room temp. I used household ammonia, so concentration of that probably wasn't your problem. Perhaps your ratio of iron(II) and iron(III) wasn't quite right?
@yellowmetalcyborg Interesting question, I'm not 100% sure. The sources I've read that use this procedure seem to suggest that chloride is necessary for the ammonia to precipitate out magnetite. Ammonium acetate is less soluble than ammonium chloride, so you might run into problems with it also precipitating. Wiki mentions a method to make iron(II) acetate, but it's pretty complex. You might not want to go that route.
To get the iron (II) salt, you need to reduce it somehow (force the iron ions to take another electron), perhaps try adding a little iron metal strips to the (III) solution and see what happens.
Your stir bar attracted most of the magnetite! I was wondering why your ferrofluid wasn't reacting to the magnet very well, lol! Dude, I learned so much watching this video—very easy to follow.. Keep up the good work, bro. Laters.
@silkyinkstudios Yeah there's a strong possibility that's why the ferrofluid isn't that great, lol. I'll have to redo this one for sure. Thanks for the kind words, I'm glad you enjoyed it!
@chemicalsymphony Mine was from Maker Shed - they've got a sale going as they are trying to get rid of their science room stock. Because of that their inventory changes often, so I'm not sure if they still have any.
@chemicalsymphony Olive oil has a high concentration of oleic acid (~70% I believe), so you could also recover it from that. I've never done it though, so I'm not sure what the procedure would be.
@lemire182 Thanks! That's part of the reason I started this channel, because I think classrooms nowadays don't do enough exciting stuff to get people interested in the science. Chemistry in particular is a hands-on experience, and you really miss out if your education is limited because everyone's too worried about liability.
LOL, rarely do I literally "facepalm" but as soon as I saw that stir bar on the screen and I hadn't even noticed the text at the bottom, it happened.
Now I do wonder if the stir bar actually pulled the magnetite out of the oleic acid, or simply attracted the magnetite that was suspended on the oleic acid to itself.
@prisoner1138 Hah yeah, I do the same every time I watch the video now. Judging by the way the stir bar looked at the end, I'm thinking it pulled the magnetite out of solution completely since the spikes looked so rigid. Oh well, at least I know to not do that again! :)
@prisoner1138 Possibly. You could probably just repeat the second step of heating and adding oleic acid to the magnetite. The magnet may have caused it to clump together too much though, which is exactly what you don't want in a ferrofluid. I'm not sure. I'd like to do this again in the future for sure.
Great video, love the home lab setup. I've tried a similar prep using oleic acid extracted from olive oil (treated with NaOH to make soap, then salted out with brine and boiled in HCl), but have had trouble getting the particles coated. Also, once coated, have you tried other less flammable carriers for the particles, such as mineral oil or, ideally, baby oil?
@nbeac038 Thanks! That's an interesting method to recover oleic acid, I'll have to try that! Do you know where I could find detailed procedures? I haven't tried other oils, but that's a good idea - kerosene smells terrible and the flammability is an issue. They key would be if oleic acid is soluble in the other oil. I'll have to think about that one. A heavy oil would be ideal I would think, so you could store it under water.
@mrhomescientist I just googled how to make soap from olive oil, and the salting out is just boiling the soap with brine to remove the glycerin. After that, acidifying the soap to the fatty acid is basic chemistry. It's good form to add excess lye when making the soap and 110 mol% HCl with respect to the original amount of lye. To reduce fumes from the hot acid, dilute the 20 Baume ("31.45%") hardware store muriatic acid (aiming for below 3 M). Be sure to mix well at each step.
Also, when making Fe(III) from Fe(II) and peroxide, be sure to kill the excess peroxide with potassium iodide before adding ammonia, otherwise you form hydrazine, which is highly toxic and carcinogenic. It has a sour ammonia-like odour
One more question the ammonium oleate step: is it absolutely necessary to drive off the excess ammonia prior to adding oleic acid, or could you just the freshly precipitated Fe3O4, then add oleic acid and heat to drive off the ammonia? Also, have you observed the magnetite going slightly red or brownish during extended heating?
@nbeac038 You don't want to drive it off beforehand, because the oleic acid has to react with it first to form ammonium oleate. This then decomposes with heating to release the ammonia as a gas, and an oleate ion that can then bind to a magnetite particle. Thus you need the ammonia so you can go oleic acid >> ammonium oleate >> oleate ion >> oleate coated magnetite. At least, that's my understanding of the process. Also good call on neutralizing the peroxide!
@nbeac038 My last comment went over the character limit. I basically added the oleic acid just after heating the solution, but before much ammonia had been driven off. It was only after the addition that any decomposition should have happened. Thanks for all the good comments, it's great to see people interested in this stuff.
@spotlightman1234 Thanks! Mine was from the Maker Shed website - they are having a crazy 75% off sale because they are getting rid of their science section, so I just bought one of everything :) It's also found in animal fat and makes up a large percent of olive, pecan, and peanut oils (according to wikipedia). I'm not sure how you would purify the acid out of there though.
I noticed you hade a magnetic stirrer/heater, since this is a magnetic substance, what would have happened if you turned the stirrer on(without the usual stir bar)? did you try it?(and i mean like when you where still outside)
@mitpatterson That's an excellent question! I hadn't thought of that. The magnet in the plate is pretty weak so it might not stir too well, but I'll definitely try it and see what happens. Thanks for the comment!
@TheNaKLaB Hey thanks, glad you liked it! It was a lot of fun to do, I'd definitely recommend trying it. I got my oleic acid from the Maker Shed website, in their "science room." They are having a ridiculous 75% off sale now because they are getting rid of that section, so I basically bought one of everything :) I've had some problems with them, but it's so cheap it's hard to complain.
LMFAO. At 0:31 he says brown-i
mastertwiztid6393 3 days ago
im just gonna buy it rather than risking my own death
appLeCrackz 3 days ago
damn bro, i looks like your about to make meth!
quickscopedmofo 2 weeks ago
@quickscopedmofo Why does every experiment look like someone "making meth" to the scientifically inexperienced.
SargentLimpDick 1 week ago 2
Where did you get your parafilm? Please reply:)
98JMA 3 weeks ago
steam, where is the water for it to be steam?
ABarbershopBarber 3 weeks ago
@ABarbershopBarber There's water all over the place - the iron chloride and ammonia solutions are all mostly water. But as I mention in the video, the smoke you see is much more likely to be ammonium chloride from the reaction of ammonia vapors with leftover hydrochloric acid in the iron chloride solutions.
mrhomescientist 3 weeks ago
Could you have stirred it without the stir bar?
Would it have reacted to the stirrer in the base of the hot plate without the stir bar?
tybo09 4 weeks ago
I, I'm French. Where I can found this video or explications in French please ? Thanks.
enferss 1 month ago
Does any fatty acid work or does it have to be oleic acid? Like, could you use palmitic or linoleic acid?
ferretyluv 1 month ago
oleic acid is also the chemical ants produce when their exoskeletons begin to rot. when other ants smell it they carry stuff with oleic acid on it to a waste pile.
stbmoo 1 month ago
@stbmoo I believe you're thinking of formic acid. Oleic is acid is sunflower oil. I've crushed a lot of ants in my day, and not one of them has smelled like sunflowers.
ferretyluv 1 month ago
@ferretyluv
nope. formic acid is what they produce as a defense. they smell like that when you crush them because youre popping the chamber that holds it. oleic acid is what their shells produce as they decay.
stbmoo 1 month ago
"at least it looks cool" - haha :D
great vid!
stijnhelsen 1 month ago
Is there anyway to skip the boiling off ammonia for one hour step? Or at least shorten the time? If I got the magnetite from the FeCl2 and FeCl3, could I rinse off the ammonia with water with a strong magnet holding the magnetite in place?
XSophiaX95 1 month ago
wait could u filtr off 2 get magntite
GTHaroFITBMX 1 month ago
Hi, do you know how long you can keep it?
Kardasik 1 month ago
@Kardasik Oh, and, as I got it, you have Fe3O4, and oleate ions dissolved in kerosene, as well as water at the end, so where does the Cl go? Does it escape as Cl2 or HCl gas or stays in the water solution?
Kardasik 1 month ago
so instead of using the stir bar, couldn't you have just turned it on without it since there's already magnetite in solution?
hilers72652 1 month ago 2
@hilers72652 Huh, I'd never thought of that! That may have been another reason things didn't go so well, with the magnetite being attracted to the bottom of the flask if wouldn't stir well anyway. Very interesting, I need to retry this one!
mrhomescientist 1 month ago
Can we just use vegetable oil instead of Oleic acid?
chonbodee 2 months ago
@chonbodee I've heard of another method that uses that and printer toner, so maybe. I'm not sure if it would work with the process I used or not.
mrhomescientist 2 months ago
@chonbodee printer toner and vegetable oil works
diegonikki 4 days ago
can u touch ferrofluid?
joejoe2377 2 months ago
@joejoe2377 Probably not a good idea. It's mostly kerosene and magnetite, so it smells terrible and stains everything it touches.
mrhomescientist 2 months ago
@mrhomescientist so if u touch it you'll just get stained for a long time basically?
EZIOFAN001 2 months ago
@EZIOFAN001 Pretty much, as far as I know. I still wouldn't recommend doing it.
mrhomescientist 2 months ago
That is cool.
jdmilkbrand1 2 months ago
Can you make meth like in breaking bad?
TheMistHF 2 months ago
compared to what I'm learning now
my teacher isn't doing their job right !!
dwc500 2 months ago
Cool
nlax49 2 months ago
Damn i didn't know science was that amazing i should've listened in school !
sebasinfire 2 months ago
are you my science teacher, i go to monty tech? you really sound like him, or you...
BarreBudBrothers 3 months ago
@BarreBudBrothers Haha nah. Check out my video on sodium to catch a glimpse of me.
mrhomescientist 3 months ago
Thanks for writing back so quickly. The magnetite we find in our creeks is as fine as flour. Would this work if I just mix it with motor oil?
haynerbass 3 months ago
@haynerbass It's worth a try, but remember that you also need the oleic acid. You've got 2 of the 3 parts necessary - the magnetic material (magnetite) and carrier fluid (kerosene) - but you're missing the surfactant (oleic acid). If you don't have that I know it's a major component of olive oil, so you might be able to make a crude fluid using that.
mrhomescientist 3 months ago
I live in the south-western portion of British Columbia. There is magnetite in every creek I've look in. Could I just add kerosene to that? What do you suggest? Ingredient proportions?
haynerbass 3 months ago
@haynerbass Well, kerosene and oleic acid that is. You'd just replace my step of adding iron chlorides to ammonia with adding magnetite to water, I imagine. But this may not give great results, because the magnetite should be a small a particle size as possible. That's the advantage of creating it in situ like I do here, because it makes such tiny particles. If you have a ball mill you might give that a try with your magnetite and see how it goes. Good luck!
mrhomescientist 3 months ago
I'm glad he was not an 8 year old saying mix rust and motor oil.
Benivator2 3 months ago
What happens if you touch it?
FriendshipIsMiRaClEs 3 months ago
the 1 peorson who disliked is jelly :O
bigcloud950 3 months ago
@bigcloud950 this has nothing to do with jelly! lol
kirbydude55 3 months ago
@kirbydude55 no jelly=jealous :)
bigcloud950 3 months ago
@bigcloud950 lol i know that Invader ZIM?
kirbydude55 3 months ago
@kirbydude55 ?????
bigcloud950 3 months ago
@bigcloud950 invader zim, the tv show. one of the lines was
you're just jealous
this has nothing to do with jelly!!
kirbydude55 3 months ago
why is the fetured video on how to kiss? O_o
bigcloud950 3 months ago
@bigcloud950 I think it's implying that people who watch this are Geeks and therefore, bad kissers.
I'm not saying they are. It's just the stereotypical view, innit? :)
tonithepanda 3 months ago
@tonithepanda yea i guess :)
bigcloud950 3 months ago
ok nice.Now tell us how to make some Meth. :D
TYFLAS 3 months ago
We're do you get the stuff to make it
AMT99100 3 months ago
I have only just started looking at these really interesting fluids like non newtonian fluid and especially this one the ferro fluid it is really cool i wish i could make this stuff i'd be entertained for hours playing with them (with care of course) and is this stuff lethal just in case.
SaintsRowFan224 3 months ago
@SaintsRowFan224 Well I wouldn't call it 'lethal'. Of course you definitely don't want to drink it and you probably shouldn't get any on your hands. Since it's mostly kerosene it smells awful too. Just be careful with it and use standard lab safety practices.
mrhomescientist 3 months ago
@SaintsRowFan224 google Neodymium magnet suppliers, then consciously explore and enjoy the adventure toward All That Is. ;-]
jonguyen1 3 months ago
This has been flagged as spam show
@mrhomescientist so far the majority of the oleic acid i've seen has had either a red or yellow color, but urs is clear. what is the difference and will it affect the reaction?
repr23 3 months ago
Comment removed
repr23 3 months ago
what would happen if u touched it!
lmonto 3 months ago
is this shit legal and if so where do u get this stuff!
lmonto 3 months ago
hahaha it go smoke!!!
eldestgecko 3 months ago
would this oleic acid work.
item number on ebay-
110737529440
8787cole 3 months ago in playlist 8787cole's favorites
Didn't form spikes because your magnet is probably very weak. Neodymuim magnets are best for Ferrofluid. (You probably know by now, i hope)
Abikuru 3 months ago
@Abikuru That was a neodymium magnet, from a hard drive. The more likely reason is I lost most of the magnetite when it stuck to my stir bar.
mrhomescientist 3 months ago
@mrhomescientist
I have made it too for a school project. I got minor spikes with a use of a neodymium n45 40X40X40 mm
and yes I made the same mistake by dropping a magnetic stirrer to it :(
here is my result :D
h**p://tinypic.com/r/n9k53/5
pruttelpot1 3 months ago
@mrhomescientist How do you dispose of it? If you have access to some professional waste-disposal place(like in a laboratory), how would we get rid of it/ contact some people that would get rid of it for us?
timeofknight 3 months ago
@timeofknight That's a good question, I'm really not sure. I hadn't looked into it because I wanted to keep the results of my work! It's mostly kerosene, so I'd guess you could treat it the same as that type of waste. That's just speculation though.
mrhomescientist 3 months ago
have you made mercury?
GamerNationTecno 3 months ago
Random, possibly idiotic, question here. Why doesn't any fluid containing iron (like the FeCl2 & FeCl3) behave like ferrofluid does?
yours12342 3 months ago
@yours12342 Magnetism in materials generally arises from electron configuration and unpaired electrons. When the iron is bonded in a compound like this, then it's electron structure changes and it loses its magnetism. A lot of times that happens because these bonded atoms try to get a full outer shell, which means no unpaired electrons.
mrhomescientist 3 months ago
@yours12342 you question couldn't POSSIBLY be idiotic! I don't even know what FeClthingy IS!?! Now I feel stupid O_o
MomoHasMuffins 3 months ago
@MomoHasMuffins lol :p "Fe" just means "Iron", which is magnetic. FeCl(#) is Iron bound to chlorine, and I'm just curious as to why the iron-chlorine mixtures don't form the cool liquid spikes like the true "ferrofluid" does. (As far as i know, 'ferrofluid' more or less means 'iron-liquid')
yours12342 3 months ago
@yours12342 I suddenly feel weirdly enlightend and educated O_o ... :D thankyou for that ^_^
MomoHasMuffins 3 months ago
Mine didn't make Magnemite, not very happy.
swimfatman 3 months ago
where does the water come from?
8787cole 3 months ago
when you added the last ingredient for suspending the compound i thought for a second there might be a very large bang to follow lol. How hot does the heat plate get?
MrRedeyedJedi 3 months ago
You should consider not using heat on the mixture containing the magnetite, as it looses it's magnetic abiliies that way! If you really want to get rid of the ammonia, use a vacuum pump to drive of any excess ammonia...;)
Nice video though, and a pretty cool experiment too!
X.el_ION
xelionizer 3 months ago
How did you get the hard-drive magnet off of the metal mounting thing? I thought they were epoxied on or something. I have 4 at home and need to get them off!
Thx in advance.
99Chemicals 4 months ago
@99Chemicals That one was actually given to me like that. I would think the real problem would be it sticking to the mounting bracket via magnetic force - those things are strong! I would probably try prying it off with something non-magnetic like a stainless steel screwdriver or something. Never done it myself though, good luck!
mrhomescientist 3 months ago
@mrhomescientist I googled it and I found a youtube video, it says you can get a magnet of my bending the braket and using a screwdriver to pop it off. I tried it and it worked perfectly, the only problem is it took of most of the nickel plating of the back of the magnet. When I popped it off there was some residue, so im guessing that there was some kind of adhesive on the back of the magnet.
99Chemicals 3 months ago
That was totally not worth it.
theawesomeness2the13 4 months ago
Doom and gloom up in his room its Dexter's Lab
aceholeas 4 months ago 5
@aceholeas I used to love that show! The short little movie they did called "Ego Trip" was my favorite.
mrhomescientist 4 months ago
Next time switch to stir without stir-bar.
I'm sure, this will do.
RFDlic 4 months ago
is there any replacement for the oleic acid?
my teachers think its to expansive to buy for my project :/
linda2503 4 months ago
lol at least it looks cool
LalaXiongsterz101 4 months ago
how long did you leave it on the hot plate?
jacobouchh 4 months ago
O yeah... I did the stir bar thing too lol when u droPped urs in, I did too hahaha btw put it in 100 ml of kerosene and it sill be all better, maybe do it twice with clean will help even more.
muberblob 4 months ago
furure Bong lol
MultiCODexpert 4 months ago
This has been flagged as spam show
I wonder if we could get liquid helium to carry this... so it will be a superfluid as well..
serpentboy201269 4 months ago
Comment removed
serpentboy201269 4 months ago
I went searching and saw that citric acid can be used instead of oleic acid
is that right? or is it to weak?
and will it react the same as the oleic acid?
and wich carrier should I use with that ?
HELP T.T
linda2503 4 months ago
ooh and my teacher thinks petroleum can be used 2 but I have no clue
can someone please respond ASAP?
and I need to know how much of mL I will need for it !!!
linda2503 4 months ago
someone said he used methanol as the carier
is that the same amount you have to use then?
because my school wont let me use kerosine
and the lab person at school doesnt know what oleic acid is..
how do I explain this to him?
can someone please anwser me as soon as possible?
I need to change my project plan today x.x otherwise Im dead x.x
linda2503 4 months ago
errr i have a black stop on my arm when i accidently spilled some ferrofluid on me what do i do to the black stop? cause it wont go away
GaryisaRoach 4 months ago
@GaryisaRoach Interesting question, I'm not sure. It would mainly depend on if kerosene expands or contracts, since that's the carrier fluid and makes up the bulk of the liquid.
mrhomescientist 4 months ago
@mrhomescientist thanks for the info but i just wanna know how do i take the black spot off?
GaryisaRoach 4 months ago
@GaryisaRoach Whoops, responded to the wrong person! Ferrofluid stains pretty much everything it touches, and I don't know how to remove it beyond scrubbing with soap and water. I wouldn't worry about it though, it'll come off after a while on it's own like permanent marker.
mrhomescientist 4 months ago
@mrhomescientist ok thank you i guess that answer will help
GaryisaRoach 4 months ago
Does ferrofluid expand or contract when heated or cooled?
TheDarthChop 4 months ago
@TheDarthChop Interesting question, I'm not sure. It would mainly depend on if kerosene expands or contracts, since that's the carrier fluid and makes up the bulk of the liquid.
mrhomescientist 4 months ago
@mrhomescientist no, it doesn't expand or contract due to the magnet properties, the iron oxide particles do not get closer or more far away from each other
caramelllllo 4 months ago
lol "at least it looks cool"
Febrezemaster 4 months ago
ur gay
spooky12602 4 months ago
oooh and on wich tempreture is the best to cook it on?
linda2503 4 months ago
okay is it Fe2Cl and Fe3Cl or FeCl2 and FeCl3?
Im getting confused :/
linda2503 4 months ago
@linda2503 It's the last two. Iron(II) and iron(III) refers to the oxidation state of iron, not the number of atoms of it in the compound.
mrhomescientist 4 months ago 6
Household ammonia, what is the concentration?
Also, what sort of kerosene do you use? (structural formula)
I need this for a school project! Thanks!
f3llaNnoob 4 months ago
relativity simple minus the fact i dont have any of this haha
trashthewoman 5 months ago
Seen that stir-bar and started laughing
peonatre 5 months ago
hi Im going to make Ferrofluid for my final school project, I was very interested in this things. I already bought 2 magnets that can carry 30 kg
I cant make any mistakes when I make it, because I need to use it for a ferrofluid sculpture. so it needs to work
Im kinda freaking out because Im afraid I do something wrong
got any tips?
and what kind of stirring do you need to use instead?
and how many Ferrofluid do you get from these proportions
(Im Dutch so my English isnt that good)
linda2503 5 months ago
@linda2503 I would just try and use a lot of stirring by hand with a glass or plastic rod, instead of what I did. I think that is they key to why mine didn't come out too well. I ended up with about 3oz of liquid. It helps to let it sit for a long time too, to allow all the water to settle out at the bottom. That improves it a bit. There are also simpler recipes out there using printer toner and vegetable oil. I'd recommend looking up a lot of videos on this first. Good luck with your project!
mrhomescientist 5 months ago
@linda2503 I would just try and use a lot of stirring by hand with a glass or plastic rod, instead of what I did. I think that is they key to why mine didn't come out too well. I ended up with about 3oz of liquid. It helps to let it sit for a long time too, to allow all the water to settle out at the bottom. That improves it a bit. There are also simpler recipes out there using printer toner and vegetable oil. I'd recommend looking up a lot of videos on this first. Good luck with your project!
mrhomescientist 5 months ago
hi Im going to make Ferrofluid for my final school project, I was very interested in this things. I already bought 2 magnets that can carry 30 kg
I cant make any mistakes when I make it, because I need to use it for a ferrofluid sculpture. so it needs to work
Im kinda freaking out because Im afraid I do something wrong
got any tips?
and what kind of stirring do you need to use instead?
linda2503 5 months ago
Pulgar arriba si venis de No tengo tele
javimania111 5 months ago
no tengo tele ...
MrElmasdiablo 5 months ago
The end made my day. Great video.
Hockeydude322112 5 months ago
... And where do I get that stuff?
AND LOL AT KEITH KETCHUP
12ZELDALINK 5 months ago
isn't Magnetite a pokemon?
Keithketchup 5 months ago
You are using chlorid solutions, always be carefull with fumes from chlorid
cashdaddyg 6 months ago
I tried to make ferrofluid, but before I added the carrier, the magnetite made small globs at the bottom of the flask, and it would transfer to the carrier. Two things I'm doing differently form you. One, I am using methanol as my carrier, and two, I didn't use a magnetic stirrer (which is probably good), but I only stirred for about 3 minutes. Do you have any suggestions? I think I did everything right before that point. I used reagent grade oleic acid...
elementguy27 6 months ago
@elementguy27 That's strange. My first thought was to question the solubility of oleic acid in methanol, but I looked it up and that seems fine to use. The only thing I could think of is not enough stirring. Not using magnetic was a good idea, but the magnetite is pretty heavy so I'm thinking insufficient stirring doesn't let the oleic acid coat it as much as it needs to. That would mean the magnetite would remain insoluble in the carrier. Glad to hear others are trying this out - good luck!
mrhomescientist 6 months ago
easiest way to make ferro fluid 2 ingredients
laser printer toner
and vegetable oil
diegonikki 6 months ago 8
@diegonikki Yeah I've seen that done too, it's pretty slick. Less interesting chemically (imo), but it does seem to work very well!
mrhomescientist 6 months ago
@diegonikki when i do this i only get a magnetic blob.no spike.i have neodymium magnets and the micr laserjet toner but it just wont spike.plz help
8787cole 3 months ago
@8787cole u need really fine toner some may not work
diegonikki 3 months ago
@diegonikki here is a link to the toner I'm using.it seems very fine.
ebay.com/itm/MICR-Toner-Refill-HP-Laserjet-1150-1151-Q2624A-24A-/170527288548?pt=BI_Toner&hash=item27b437ece4
8787cole 3 months ago
Do we need to heat the mixture of the iron chlorides first then add to ammonia? or do we just mix them together at room temp. When i tried this no magnetite formed. Is this because the ammonia concentration was too weak?
LiParkable 6 months ago
@LiParkable I didn't do any heating in the beginning, it was all at room temp. I used household ammonia, so concentration of that probably wasn't your problem. Perhaps your ratio of iron(II) and iron(III) wasn't quite right?
mrhomescientist 6 months ago
Do you absolutely have to use iron chlorides, or can you use iron acetates instead?
I tried making iron acetate before, but I only managed to make iron 3 acetate. Any ideas on how to make iron 2 acetate?
yellowmetalcyborg 9 months ago
@yellowmetalcyborg Interesting question, I'm not 100% sure. The sources I've read that use this procedure seem to suggest that chloride is necessary for the ammonia to precipitate out magnetite. Ammonium acetate is less soluble than ammonium chloride, so you might run into problems with it also precipitating. Wiki mentions a method to make iron(II) acetate, but it's pretty complex. You might not want to go that route.
mrhomescientist 9 months ago
@mrhomescientist Ok, thanks for the info.
yellowmetalcyborg 9 months ago
@yellowmetalcyborg
To get the iron (II) salt, you need to reduce it somehow (force the iron ions to take another electron), perhaps try adding a little iron metal strips to the (III) solution and see what happens.
98JMA 6 months ago
@98JMA Okay, I'll try that. If it doesn't work, I might try to use a stronger reducing agent.
yellowmetalcyborg 6 months ago
Your stir bar attracted most of the magnetite! I was wondering why your ferrofluid wasn't reacting to the magnet very well, lol! Dude, I learned so much watching this video—very easy to follow.. Keep up the good work, bro. Laters.
silkyinkstudios 9 months ago
@silkyinkstudios Yeah there's a strong possibility that's why the ferrofluid isn't that great, lol. I'll have to redo this one for sure. Thanks for the kind words, I'm glad you enjoyed it!
mrhomescientist 9 months ago
Where do you get the oleic acid from?
chemicalsymphony 9 months ago
@chemicalsymphony Mine was from Maker Shed - they've got a sale going as they are trying to get rid of their science room stock. Because of that their inventory changes often, so I'm not sure if they still have any.
mrhomescientist 9 months ago
@chemicalsymphony Olive oil has a high concentration of oleic acid (~70% I believe), so you could also recover it from that. I've never done it though, so I'm not sure what the procedure would be.
mrhomescientist 9 months ago
@mrhomescientist Yeah, I read that there are a whole bunch of oils with oleic acid in them, see what I can do. Thanks.
chemicalsymphony 9 months ago
Isn't oleic acid omega-9?
elementguy27 10 months ago
Chemistry is awesome!! I hated the class, but this shit is siick!!!
lemire182 10 months ago
@lemire182 Thanks! That's part of the reason I started this channel, because I think classrooms nowadays don't do enough exciting stuff to get people interested in the science. Chemistry in particular is a hands-on experience, and you really miss out if your education is limited because everyone's too worried about liability.
mrhomescientist 10 months ago
This has been flagged as spam show
do we can replace acid oleic for
al689859 10 months ago
do we can replace acid oleic for ?
al689859 10 months ago
LOL, rarely do I literally "facepalm" but as soon as I saw that stir bar on the screen and I hadn't even noticed the text at the bottom, it happened.
Now I do wonder if the stir bar actually pulled the magnetite out of the oleic acid, or simply attracted the magnetite that was suspended on the oleic acid to itself.
prisoner1138 10 months ago
@prisoner1138 Hah yeah, I do the same every time I watch the video now. Judging by the way the stir bar looked at the end, I'm thinking it pulled the magnetite out of solution completely since the spikes looked so rigid. Oh well, at least I know to not do that again! :)
mrhomescientist 10 months ago
@mrhomescientist Hmm, would it be possible to get the magnetite back into solution?
prisoner1138 10 months ago
@prisoner1138 Possibly. You could probably just repeat the second step of heating and adding oleic acid to the magnetite. The magnet may have caused it to clump together too much though, which is exactly what you don't want in a ferrofluid. I'm not sure. I'd like to do this again in the future for sure.
mrhomescientist 10 months ago
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letstalkover 11 months ago
Great video, love the home lab setup. I've tried a similar prep using oleic acid extracted from olive oil (treated with NaOH to make soap, then salted out with brine and boiled in HCl), but have had trouble getting the particles coated. Also, once coated, have you tried other less flammable carriers for the particles, such as mineral oil or, ideally, baby oil?
nbeac038 1 year ago
@nbeac038 Thanks! That's an interesting method to recover oleic acid, I'll have to try that! Do you know where I could find detailed procedures? I haven't tried other oils, but that's a good idea - kerosene smells terrible and the flammability is an issue. They key would be if oleic acid is soluble in the other oil. I'll have to think about that one. A heavy oil would be ideal I would think, so you could store it under water.
mrhomescientist 1 year ago
@mrhomescientist I just googled how to make soap from olive oil, and the salting out is just boiling the soap with brine to remove the glycerin. After that, acidifying the soap to the fatty acid is basic chemistry. It's good form to add excess lye when making the soap and 110 mol% HCl with respect to the original amount of lye. To reduce fumes from the hot acid, dilute the 20 Baume ("31.45%") hardware store muriatic acid (aiming for below 3 M). Be sure to mix well at each step.
nbeac038 1 year ago
@nbeac038 Thanks for the details! That sounds like it would be interesting to try sometime.
mrhomescientist 1 year ago
Comment removed
nbeac038 1 year ago
Also, when making Fe(III) from Fe(II) and peroxide, be sure to kill the excess peroxide with potassium iodide before adding ammonia, otherwise you form hydrazine, which is highly toxic and carcinogenic. It has a sour ammonia-like odour
nbeac038 1 year ago
One more question the ammonium oleate step: is it absolutely necessary to drive off the excess ammonia prior to adding oleic acid, or could you just the freshly precipitated Fe3O4, then add oleic acid and heat to drive off the ammonia? Also, have you observed the magnetite going slightly red or brownish during extended heating?
nbeac038 1 year ago
@nbeac038 You don't want to drive it off beforehand, because the oleic acid has to react with it first to form ammonium oleate. This then decomposes with heating to release the ammonia as a gas, and an oleate ion that can then bind to a magnetite particle. Thus you need the ammonia so you can go oleic acid >> ammonium oleate >> oleate ion >> oleate coated magnetite. At least, that's my understanding of the process. Also good call on neutralizing the peroxide!
mrhomescientist 1 year ago
@nbeac038 My last comment went over the character limit. I basically added the oleic acid just after heating the solution, but before much ammonia had been driven off. It was only after the addition that any decomposition should have happened. Thanks for all the good comments, it's great to see people interested in this stuff.
mrhomescientist 1 year ago
Very interesting video, well done.
jjab99 1 year ago
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91101Tom 1 year ago
there is an even simpler way to do it ,,,,get a printer toner break it take the powder out ,,,mix it with baby oil and ur done :)
t0p0l1eve4 1 year ago
Great job man! A really easy way to make it if anyone decides to go the home route.
Haha "Bad idea in 3... 2... 1..."
hkparker 1 year ago
where do i get oleic acid? also awesome synthesis!
spotlightman1234 1 year ago
@spotlightman1234 Thanks! Mine was from the Maker Shed website - they are having a crazy 75% off sale because they are getting rid of their science section, so I just bought one of everything :) It's also found in animal fat and makes up a large percent of olive, pecan, and peanut oils (according to wikipedia). I'm not sure how you would purify the acid out of there though.
mrhomescientist 1 year ago
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91101Tom 1 year ago
I noticed you hade a magnetic stirrer/heater, since this is a magnetic substance, what would have happened if you turned the stirrer on(without the usual stir bar)? did you try it?(and i mean like when you where still outside)
mitpatterson 1 year ago
@mitpatterson That's an excellent question! I hadn't thought of that. The magnet in the plate is pretty weak so it might not stir too well, but I'll definitely try it and see what happens. Thanks for the comment!
mrhomescientist 1 year ago
@mrhomescientist sweet, let me know what happens, or make a vid even
mitpatterson 1 year ago
Comment removed
mitpatterson 1 year ago
very good video, I enjoyed watching it :)
I might try this out my self.
Also, where did you get the Oleic Acid from?
TheNaKLaB 1 year ago
@TheNaKLaB Hey thanks, glad you liked it! It was a lot of fun to do, I'd definitely recommend trying it. I got my oleic acid from the Maker Shed website, in their "science room." They are having a ridiculous 75% off sale now because they are getting rid of that section, so I basically bought one of everything :) I've had some problems with them, but it's so cheap it's hard to complain.
mrhomescientist 1 year ago