You asked if there was another piece of lab equipment we would like to see. IDK about others but, a Friedrichs condenser gets me all twisted. I can’t tell from the wiki pic what pathways are for what. IE vapor path VS coolant. Moreover what is a Friedrichs condenser used for? From looking at it, it appears to be a type of fractional distillation column. (like a snyder or a vigreux column) But I don’t understand why it has such a specialized shape as opposed to other types..... thanks
I do not consider too many people bright or clever in anyway but must admit you have impressed me more than once primarily because you are a good teacher and take the iniative to aid your fellow nurd. I thank you very much.
I WANT TO SEE U AND STEPHEN HAWKING TALKING ABOUT WORLD DOMINATION, OVERTAKING THE US AND FEED THE ASIAN COMMUNITY CHING CHANG CHO LIKE A HITLER BOI!!!!!!!!! BUT THEN I TOOK AND ARROW TO MY @SS
Please make a video on how to separate chemicals ie bear aspirin got aspirin and calcium carbonate in it. How do you get the calcium carbonate out of it?
I would like to know how the hot plate works. I am going to make my magnetic stirrer and just obtained all of the free parts. I also need to know what kind of barrier the pyrex glass needs between it and the source of heat. I thought about using copper because it distributes heat evenly. Can I place copper on top of a heat source, then place my flask on that and get to work? How thick does the cu need to be?
As simplistic as this may be to you or to many other people, I found this pretty spiffy. I kind of assumed that it was something like a magnet spinning below the heating plate, but getting a quick look inside and a rundown of how it worked was pretty cool. I don't have a suggestion for other equipment as of right now, but I'd love to see various "Lab Equipment" videos in the future!
Just wanting to say that I love your videos! I think what you do is highly educational to those of us who really get into chemistry, and I have to say think you for taking your time to post these videos. As for yur question, I would like to see the NMR spectrometer. Also, a tour of your lab would be really cool!
Seems kinda stupid to have a motor inside the device spinning a magnet. Why not make it solid-state with coils that reverse polarity? Basically an induction motor with the stir bar as the rotor.
@ApertureScience27 i'm not an engineer so i can't say for certain. But i think the electromagentic field required to strongly couple to the magnet would require a lot of current and would waste power (since the coils have a small resistance). But by having a permanent magnet the strong magnetic field is free since it doesn't need power to run. This field couples to the stirring magnet and so you only need to expend energy in actually turning the assembly, which uses far less power
@NurdRage no it would not take much current to spin a small magnet. i would thin the do it this way because it requires no high tec things of any sort and it was built for chemists not engineers. also a motor often works on induction a process that can heat up metals say iron failings that you do not want heated up to red hot :)
@NurdRage What I mean to say is I feel both your responses are correct.I think Aperture is going for a large induction field (which we both know is energyconsuming)but the motor itself is powered that very way, its just the induction coils and motor assembly are a LOT closer, generating more power for the motor as you said. It is easier to have that motor with a physical magnet attached due to the very points you made on motor efficiency...just wanted to clarify that there was an induction motor
Here are a few problems to conquer if you want to design it:
-How do you place enough electromagnets in a circle to provide a smooth spinning action to the stir bar while still being powerful enough to move the stir bar?
-How do you prevent loss of coupling whereby the stir bar goes flying off in some direction, or spins at a rate different than the rate at which the fields change?
Its just way harder to design a solid state magnetic stirer, and not really necessary.
-For your electromagnets to be powerful enough to stir with any torque at all, you're going to have to use iron cores, and in that case how do you prevent the stir bar from being attracted to the core materials through the plate?
So what would be done to make leway for any Chemical changes to come about from the use of a oject or from the electromagnetics with on the mixtures of
I find this really interesting. I always thought that running a magnet on a motor under a hotplate would be problematic because the magnet would reach its Curie temperature and lose its magnetization. I was under the impression that commercial hotplate/stirrers had circularly-arranged electromagnets and a driver circuit to turn the stir bar.Turns out they're dead simple... time to retrofit my hotplate.
@ApertureScience27 I'm worried about the magnet under the plate. According to wikipedia, standard NdFeB magnets have a Curie temp of 310-400C. I've boiled sulfuric acid on my plate at ~330C and melted lead at 327C, so if the magnet under the element didn't have sufficient cooling there may very well be issues. I suppose I should use a different type of magnet!
would it be possible that you did a Belousov-Zhabotinsky Reaction? I haven't seen any videos where it is explained in more detail, they just show the image.
o.o;; You have the NICEST hands ever. Like...wow. I noticed you mentioned "us" this time? Buddies in the lab or ghost partners working for your interweb videos?
I've noticed that you have never really used test tubes in your videos, even though the chemistry stereotype is depicted with them. What times do you use them?
For extra challenge make one without the motor directly.
The magnet can be made to rotate if you can produce a rotating magnetic field.
This could be done with several coils and similar control to brushless motor control, though I don't know if you can get the magnetic field orientation right.
What i did to make mine was i used my old comp fan (replaced it with a newer one) just tape a magnet to the top of it, put it under a plater, turn it on and place a stir bar on it.
@Lukegpb That's really REALLY clever. :D But then again, now that we've got this idea in mind, you can basically come up with anything that spins for a living and make it into a simile stir plate.
I notice you use a lot of glass containers, but in a lot of videos you make a lot of formulas that are highly toxic. Do you reuse any equipment, and for those you don't, what would the safest method of disposal be?
I'm a chem major at my university going into my third year. We always send off our organic chemicals for Proton NMR testing. Now they won't let regular students run these machines. I know the theory behind them, but I'm curious to know if you could get your hands on one and show the inner workings... : D
@ikill4fatcity I am aware that your comment dates back a 1/2 year, yet I totally would love to see that as well! Seeing as I took a Organic Chem II course. xD
If I remember correctly, we have two of those at the science building... both cost a total of 1.3M xDDDD
THAT IS SO COOL. O_O I feel really stupid, but I thought that the stirring plate was somehow spinning the glass container itself, which freaked me out every time I watched a video I thought, "What if the container goes flying?!" So thank you SO much for this demonstration! ^^
@95Barqs1 i have absolutely TONS of information on using vacuums for chemistry in my videos, look at the fridge pump ones. I show you genuine, multithousand pound pumps, how to copy them, how they're used for chemistry... blah blah blah.... i'm not done yet either. i've just modified one, with bits of rubbish from around the house, and it's going into the sub millibar range. possibly on the cards is a DIY diffusion pump for analytical equipment.
DON'T OPEN THAT! IKA WILL RAPE YOU FOR SPARES! You can get equally good digital hot/stir plates out of china. If you google for MS300 hotplate, you see the chinese version of IKA's more expensive plates. And it's something like $150. IKA's are insanely expensive.
@19Hinrichs the ones with digital controls for the temperature / stir speed and a timer? if so, i'd be kind of interested in hearing some more about those. IKA / Thermo are the Flukes of chemistry. nice, but also a lot more expensive than they need to be.
@lexichronicle2 yes the one in the link , it dont think its very well build noisy and the alot of the time it wont stirr at slow speeds because the motor does not have enough powder , and gets stuck to the stirring rod
@19Hinrichs get's stuck to the stirring rod? you mean the stir bar? that's kind of what it's designed to do. not enough power at slow speeds? that's backwards, it takes more power to stir quicker. you mean, can't stir viscose solutions? my own, German made, plate won't, that IKA won't either. that's what overhead stirrers are for.
@lexichronicle2 yes i do mean the stirbar ofcourse , and no it is not suposed to get stuck so it cant spin , i just dont got enough powder to get it start spinning at low rpm , just when you really put the rpm higher it starts spinning very fast , but it wont so slow rpm
@pyr0ph1L trust me on this one dis guy's spam site really works ive tried myself.. minus is that it take s like 2 weeks for the things you order to get here
I'm buying a hotplate soon, and im just wondering...If i get a hotplate that goes to 400 instead of 300C, would you expect the 400 one to be more accurate? just in general, i know it's not really constant. the 400 one is 270$ and the other is 120$ Im expecting better quality, but idk if it's just a little piece in it, or just overall better technology... x.x if you have a favorite hotplate, what is it, and what about scales, what is your favorite scale? (if any, or just the ones you use)
I'm just wondering: why are these magnetic stir heating plates so expensive? I remember quickly browsing through a couple of them on one of the websites that have been provided, but prices are almost the same as if you wanted to buy an actual kitchen stove.
@NurdRage Which model you have? Please tell me, I found just verry expensive stuff for like $100 up to $350. Please tell me which model you use So I can buy it. THANX!
@pikulicluka Are you serious? If so bear in mind that most radioactive isotopes are extremely dangerous to handle, are more expensive than you could imagine, and are downright impossible to get. Plus there's little you can DO with radioactive materials that falls into the category of "remotely interesting". There's little point in making videos about them along the line of Nurdrage's videos!
Still, it's kind of sad to see a high price on those seeing how it is a basic necessity when dealing with chemistry. XD For the record, I haven't figured out why they are that expensive... yet. :)
@Magnak stir plates alone are usually affordable, but a heat/stir plate can be expensive because of the programming, circuitry, and overall complexity required to both stir and heat without the machine igniting itself. Remember, companies would rather have you pay more to be safe then pay less just to get sued.
@Magnak Mainly because everybody needs a stove, but not everybody in the world needs one of these, making production a lot higher for stoves. Lets say stoves are $1 and everybody needs one(I know...) and half of the people need one of these, so they either need to sell two to every one or raise prices to sell and make as much money as Kennmore and other brands make. Second, because people that want these can mainly be for occupations that NEED these, so they can raise the prices for them........
@SharpShooter7thSt Third, because there are few brands that make them, thousands for stoves, meaning that they do not need to compete in the lowest prices...
@SharpShooter7thSt By the way, it didn't help much. I also checked once again, just to maybe finally get one this year or in 2012, the prices are around 240$ now.
@SharpShooter7thSt Bad explanation... but I get your 'Offer & Demand' approach. But still, it has nothing to do with actual stoves, this is, most generally put, science equipment. (e.g.: beakers, grad. cylinders, etc)
Anyways, I posted that question a year ago... I did not expect people to still be trying to explain it.
HIIIIIIII I was wondering if you could make a vid on the synthesis of copper acetate.. the two methods and why does the copper react with acetic acid fumes?
you made on how to make TCPO and i saw that you had to weigh the chemicals very precisely so my question is, what do you use to weigh it so precisely? and, can you make a video about this instrument?
You know jbohbot1 I know that part is already coated with teflon. I was just making a general statement asking how do you coat a metal with something that is pretty chemically inert. Thought it might make an interesting video.
Definitely cheaper to make one than buy one, especially if your like me with an old lathe and stereo equipment laying around. Now I just have to figure out how to teflon coat my stirrer...... electrolysis..? hmmm I'll post directions on my site when I finish.
For most reactions, you can just use a stir bar coated in glass, which is easy to make by just dipping a steel slug in molten glass. The main issue with it is the glass will wear and you'll get a very small amount of glass in your reactions, however it is cheap and easy.
so teflon is (the most?) very resistant to acids, is it becouse it cant "stick" on inte or is it just the material in it self that things cant react with as easy?
I was wondering if you could share a way that hydrogen peroxide could be extracted from a solution of either a perborate or percarbonate. My rocket pack is running low on fuel, and Q isn't answering his telly.
You asked if there was another piece of lab equipment we would like to see. IDK about others but, a Friedrichs condenser gets me all twisted. I can’t tell from the wiki pic what pathways are for what. IE vapor path VS coolant. Moreover what is a Friedrichs condenser used for? From looking at it, it appears to be a type of fractional distillation column. (like a snyder or a vigreux column) But I don’t understand why it has such a specialized shape as opposed to other types..... thanks
Venom2U 1 day ago
nurd rage what does your face look like O3o
2m11christian 3 days ago
This apparatus is blindingly obvious as to how it works.
DeluxeWarPlaya 1 week ago
I do not consider too many people bright or clever in anyway but must admit you have impressed me more than once primarily because you are a good teacher and take the iniative to aid your fellow nurd. I thank you very much.
professorjoseph 1 week ago
This has been flagged as spam show
@NurdRage
Thats one reason.
But, to create an electical field that big with you need BIG coils and big coils have a high inductance.
So if your frequenty rises the resistance rises to, due to the inductance.
And if the resistance rises your current will get lower, and also your magnetic field.
You could higer the current by using higer volage, but this result in 2 problems,
bas12345654321 1 month ago
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bas12345654321 1 month ago
I would love to see the insides of a Spectrometer/Spectroscope with detailed explanations.
TheCichlidGeek 1 month ago
How can people not know what a stir plate is ?!
Everyone that have gone to decent school knows what it is and have used one.
For example dissolve acid pills in water when you learn about acids.
Schools seem to be getting worse by the year gee!
labobo 1 month ago
@labobo "decent school"
Hence the problem. Science funding for schools is terrible now.
thedarkone2134 1 month ago
I WANT TO SEE U AND STEPHEN HAWKING TALKING ABOUT WORLD DOMINATION, OVERTAKING THE US AND FEED THE ASIAN COMMUNITY CHING CHANG CHO LIKE A HITLER BOI!!!!!!!!! BUT THEN I TOOK AND ARROW TO MY @SS
harman654321 1 month ago
Please make a video on how to separate chemicals ie bear aspirin got aspirin and calcium carbonate in it. How do you get the calcium carbonate out of it?
vertigotronix 1 month ago
Maybe explain the fumehood or what ever cool stuff you have :D
Saelkhas 1 month ago
Next, take apart an NMR and explain how it works. :D
PolarisUSMC 1 month ago
I would like to know how the hot plate works. I am going to make my magnetic stirrer and just obtained all of the free parts. I also need to know what kind of barrier the pyrex glass needs between it and the source of heat. I thought about using copper because it distributes heat evenly. Can I place copper on top of a heat source, then place my flask on that and get to work? How thick does the cu need to be?
StaigeFright 1 month ago
nmr machine plox
onimoz 1 month ago
i want to see inside an NMR or the inside of solid or liquid IR machine.
kdog0088 1 month ago
As simplistic as this may be to you or to many other people, I found this pretty spiffy. I kind of assumed that it was something like a magnet spinning below the heating plate, but getting a quick look inside and a rundown of how it worked was pretty cool. I don't have a suggestion for other equipment as of right now, but I'd love to see various "Lab Equipment" videos in the future!
GTXCrusader 1 month ago
Full lab tour with general explanations of your equipment please. I also have not seen your face - can we have a look at that too?
IncognitoShhh 1 month ago
This has been flagged as spam show
Just wanting to say that I love your videos! I think what you do is highly educational to those of us who really get into chemistry, and I have to say think you for taking your time to post these videos. As for yur question, I would like to see the NMR spectrometer. Also, a tour of your lab would be really cool!
DarkNightDreamer 1 month ago
Yes. The voice changer!
1Rectified 1 month ago
A laboratory tour sounds awesome
ifarcast 1 month ago
Seems kinda stupid to have a motor inside the device spinning a magnet. Why not make it solid-state with coils that reverse polarity? Basically an induction motor with the stir bar as the rotor.
ApertureScience27 1 month ago 3
@ApertureScience27 i'm not an engineer so i can't say for certain. But i think the electromagentic field required to strongly couple to the magnet would require a lot of current and would waste power (since the coils have a small resistance). But by having a permanent magnet the strong magnetic field is free since it doesn't need power to run. This field couples to the stirring magnet and so you only need to expend energy in actually turning the assembly, which uses far less power
NurdRage 1 month ago 29
@NurdRage no it would not take much current to spin a small magnet. i would thin the do it this way because it requires no high tec things of any sort and it was built for chemists not engineers. also a motor often works on induction a process that can heat up metals say iron failings that you do not want heated up to red hot :)
MrStemkilla 1 month ago
@NurdRage 0:05 how did u made so much crack ? lol kidding
hellbelley 1 month ago
@NurdRage Also, it should be noted that there IS an induction motor at work, which is spinning the motor the first magnet is attached to.
QuantumChance 1 month ago
@NurdRage What I mean to say is I feel both your responses are correct.I think Aperture is going for a large induction field (which we both know is energyconsuming)but the motor itself is powered that very way, its just the induction coils and motor assembly are a LOT closer, generating more power for the motor as you said. It is easier to have that motor with a physical magnet attached due to the very points you made on motor efficiency...just wanted to clarify that there was an induction motor
QuantumChance 1 month ago
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bas12345654321 1 month ago
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bas12345654321 1 month ago
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bas12345654321 1 month ago
@NurdRage
(2 reactions becouse not enough caracters availeble)
1. If the frequenty lowers, the current will get to high so your coils will burn out.(could be prevented with a propper current cource.)
2. The coils makes high voltages when turned on or off, that would demolish your driver circuit.
The current trough the heating element will also effect the rotating field of coils.
bas12345654321 1 month ago
@bas12345654321 oh i'm not the one that needs an explanation, its the other posters that do, :)
NurdRage 1 month ago 3
@NurdRage
Yes I know,
Thats why i posted the comment, but its 2 comments long.
So it gets a bit messy.
something else,
I did reply to 2 of your videos, can you anser them?
1. Get Zinc, Carbon Electrodes and MnO2 from a Lantern Battery
2. Make MnSO4 from MnO2 [2 ways]
bas12345654321 1 month ago
@ApertureScience27
Here are a few problems to conquer if you want to design it:
-How do you place enough electromagnets in a circle to provide a smooth spinning action to the stir bar while still being powerful enough to move the stir bar?
-How do you prevent loss of coupling whereby the stir bar goes flying off in some direction, or spins at a rate different than the rate at which the fields change?
Its just way harder to design a solid state magnetic stirer, and not really necessary.
Sophesumer 3 weeks ago in playlist Uploaded videos
@ApertureScience27
Oh, and forgot to mention- another problem:
-For your electromagnets to be powerful enough to stir with any torque at all, you're going to have to use iron cores, and in that case how do you prevent the stir bar from being attracted to the core materials through the plate?
Sophesumer 3 weeks ago in playlist Uploaded videos
ha, this is blatantly obvious and you only mention it like five times in your videos that you are using the magnetic stir plate doohickey.
Sorry if i sound stupid here, but im having a good laugh at some people right now.
massacreman3000 1 month ago
So what would be done to make leway for any Chemical changes to come about from the use of a oject or from the electromagnetics with on the mixtures of
BruceMichaelAnderson 1 month ago
we would like to see your face sir :D
bounceeer 1 month ago 3
@bounceeer He said "lab equipment". =P
TommieDuhWeirdo 1 month ago
cool
tillateful 1 month ago
I find this really interesting. I always thought that running a magnet on a motor under a hotplate would be problematic because the magnet would reach its Curie temperature and lose its magnetization. I was under the impression that commercial hotplate/stirrers had circularly-arranged electromagnets and a driver circuit to turn the stir bar.Turns out they're dead simple... time to retrofit my hotplate.
zhmapper 1 month ago
@zhmapper I think pretty much any solution would boil before the magnet got to its Curie temperature.
ApertureScience27 1 month ago
@ApertureScience27 I'm worried about the magnet under the plate. According to wikipedia, standard NdFeB magnets have a Curie temp of 310-400C. I've boiled sulfuric acid on my plate at ~330C and melted lead at 327C, so if the magnet under the element didn't have sufficient cooling there may very well be issues. I suppose I should use a different type of magnet!
zhmapper 1 month ago
would it be possible that you did a Belousov-Zhabotinsky Reaction? I haven't seen any videos where it is explained in more detail, they just show the image.
Masterful6O 1 month ago
omg, a lot of hand fetish people here! creepy! lol
bluetorch13 1 month ago
I love these videos!!
Algonkin1964 1 month ago
lol finally!! I was thinking how does the stirrer work xD
levicste 1 month ago
o.o;; You have the NICEST hands ever. Like...wow. I noticed you mentioned "us" this time? Buddies in the lab or ghost partners working for your interweb videos?
capnquack 1 month ago
your hands looks young
Moongazerr 1 month ago
I want to see your face. :D
please.
Yoachan 1 month ago 40
@Yoachan i second that remark, and your real voice... or maybe you're a wanted man... or alien... or malien!
love your show. best thing since Mr. Wizard.
ilsantomembro 1 month ago 4
@Yoachan I wonder is his voice auto tune? hmmm
orioncheung 1 month ago
@Yoachan, By looking at the detail of his hands I think he's asian. Don't ask me why but that's what I sense. :P
trainz10 1 month ago
how does a reflux work?
ieye0 1 month ago
Atomic absorption spectrometer pls
johnxlkc 1 month ago
you should show what not to do with chem. to help prevent thing from happening like fires explosions and acid burns. also what cause them
jojo19001 1 month ago
I've noticed that you have never really used test tubes in your videos, even though the chemistry stereotype is depicted with them. What times do you use them?
whattheblox 2 months ago
where do i get one of theses?
ichigo7708 3 months ago
I never knew there was a magnet in the beaker !
i see that and im like WHAT SORCERY IS THIS!?!
fuzzypyro58 3 months ago
Awwww okay thanks that's what it was
JordzL 4 months ago
So it uses a Tesla engine on it? (As in an electric engine)
everysnakesdream22 4 months ago
For extra challenge make one without the motor directly.
The magnet can be made to rotate if you can produce a rotating magnetic field.
This could be done with several coils and similar control to brushless motor control, though I don't know if you can get the magnetic field orientation right.
OmniTechnoMancer 4 months ago
What i did to make mine was i used my old comp fan (replaced it with a newer one) just tape a magnet to the top of it, put it under a plater, turn it on and place a stir bar on it.
Lukegpb 7 months ago
@Lukegpb That's really REALLY clever. :D But then again, now that we've got this idea in mind, you can basically come up with anything that spins for a living and make it into a simile stir plate.
Although can you control how fast it spins? :o
Magnak 5 months ago
@Magnak No it has a set speed.
Lukegpb 5 months ago
@Lukegpb Oh I see. Nonetheless pretty awesome.
Magnak 5 months ago
looks easy to make
drainocleanser 7 months ago
@TheUnknown921 that's what it is meant for. To stir things to make solutions.
theagenturanium 8 months ago
@NurdRage Where can you get a relatively cheap one?
theagenturanium 8 months ago
I notice you use a lot of glass containers, but in a lot of videos you make a lot of formulas that are highly toxic. Do you reuse any equipment, and for those you don't, what would the safest method of disposal be?
TheChronicler90 8 months ago
Your voice changer!!! ^_^
DactaDork 9 months ago
Looking inside of it I could say it costs no more than 20-30$. We should make some Chinese firms mass-produce them for 50-60$.
UTubeisSHIT523441 9 months ago
Your voice changer?
DactaDork 9 months ago
I want to see a video about the vacuum thing!
evanperryg 10 months ago
Do you use a voice changer or is that actually your voice? Sometimes it sounds fake.
evanperryg 10 months ago
I'd love to see a video about your vacuum system!
FrozenHaxor2 10 months ago
Your voice changer?
SmrtA55 11 months ago
I'm a chem major at my university going into my third year. We always send off our organic chemicals for Proton NMR testing. Now they won't let regular students run these machines. I know the theory behind them, but I'm curious to know if you could get your hands on one and show the inner workings... : D
ikill4fatcity 1 year ago
@ikill4fatcity I am aware that your comment dates back a 1/2 year, yet I totally would love to see that as well! Seeing as I took a Organic Chem II course. xD
If I remember correctly, we have two of those at the science building... both cost a total of 1.3M xDDDD
Magnak 5 months ago
THAT IS SO COOL. O_O I feel really stupid, but I thought that the stirring plate was somehow spinning the glass container itself, which freaked me out every time I watched a video I thought, "What if the container goes flying?!" So thank you SO much for this demonstration! ^^
xdaftpunkxloverx 1 year ago
NurdRage! You are Mac Gyver! ;-)
Rofex2 1 year ago
Vacume Flask :D
meganubis 1 year ago
take a tour of the lad for us and show how to make potassium nitrate if you can make it
Randomslayer55 1 year ago
Could you make a tour of your laboratory?
Zuluwhishkey 1 year ago 55
Since you asked, I'd like to see a video on the NMR spectrometer, please.
d0jima 1 year ago 29
@d0jima
Yes, I'd love to see the NMR spectrometer as well!!
iHAVE1j 1 month ago
@d0jima yes, NMR or IR spec would good
wazscience 1 month ago
dont the heat weakens the magnet?
iamsogood9901 1 year ago
That's very clever.
FortNikitaBullion 1 year ago
my middle school used to have them
miesrah12 1 year ago
can you do a video on the vacuum pump system used in the 100 foot glow stick video?
95Barqs1 1 year ago
@95Barqs1 i have absolutely TONS of information on using vacuums for chemistry in my videos, look at the fridge pump ones. I show you genuine, multithousand pound pumps, how to copy them, how they're used for chemistry... blah blah blah.... i'm not done yet either. i've just modified one, with bits of rubbish from around the house, and it's going into the sub millibar range. possibly on the cards is a DIY diffusion pump for analytical equipment.
lexichronicle2 1 year ago
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MrKaddan 1 year ago
thank you, i've always wondered how you made the little magnet stir up the chemicals for you.
Rayden440 1 year ago
DON'T OPEN THAT! IKA WILL RAPE YOU FOR SPARES! You can get equally good digital hot/stir plates out of china. If you google for MS300 hotplate, you see the chinese version of IKA's more expensive plates. And it's something like $150. IKA's are insanely expensive.
lexichronicle2 1 year ago
@lexichronicle2 dont buy that crap , i got 1 and its absolute shit , and makes to much noise
19Hinrichs 1 year ago
@19Hinrichs the ones with digital controls for the temperature / stir speed and a timer? if so, i'd be kind of interested in hearing some more about those. IKA / Thermo are the Flukes of chemistry. nice, but also a lot more expensive than they need to be.
lexichronicle2 1 year ago
@lexichronicle2 yes the one in the link , it dont think its very well build noisy and the alot of the time it wont stirr at slow speeds because the motor does not have enough powder , and gets stuck to the stirring rod
19Hinrichs 1 year ago
@19Hinrichs get's stuck to the stirring rod? you mean the stir bar? that's kind of what it's designed to do. not enough power at slow speeds? that's backwards, it takes more power to stir quicker. you mean, can't stir viscose solutions? my own, German made, plate won't, that IKA won't either. that's what overhead stirrers are for.
lexichronicle2 1 year ago
@lexichronicle2 yes i do mean the stirbar ofcourse , and no it is not suposed to get stuck so it cant spin , i just dont got enough powder to get it start spinning at low rpm , just when you really put the rpm higher it starts spinning very fast , but it wont so slow rpm
19Hinrichs 1 year ago
where did you get your torch because I have never seen one like that. can you tell me where you got it.
phrasmotica 1 year ago
@phrasmotica dealextreme(DOT)com
They've got a LOT of torches, and it's free worldwide shipping. (:
pyr0ph1L 1 year ago
@pyr0ph1L trust me on this one dis guy's spam site really works ive tried myself.. minus is that it take s like 2 weeks for the things you order to get here
demoniac312 1 year ago
i got a chemical that i have a question on....
can i turn gfytftyfuygyughiuuhgyughyugtyguyhiuh into lithim metal??
it has qualtys of lithium metal!
iamarocker1001 1 year ago
NurdRage You guys make by far the most interesting videos I see on youtube.
Denm2 1 year ago
Do a video on Kipps Aperatuss lol
mewrox99 1 year ago
I'm buying a hotplate soon, and im just wondering...If i get a hotplate that goes to 400 instead of 300C, would you expect the 400 one to be more accurate? just in general, i know it's not really constant. the 400 one is 270$ and the other is 120$ Im expecting better quality, but idk if it's just a little piece in it, or just overall better technology... x.x if you have a favorite hotplate, what is it, and what about scales, what is your favorite scale? (if any, or just the ones you use)
freakin1random 1 year ago
I want to see a video using more of those distillery pieces. All the nice flasks with stoppers and condensers. Like in the nitric acid video.
digdugdiggy 1 year ago
I am really lol.
Have a lot of people really seemed impressed by it? Not to sound demeaning but didn't they use those back in school?
An alternative, and cheap, method might be to mount a DC-motor with a stirring rood. And if you need a little more power... use a household mixer.
It is worth to consider the stirring since some reactions will have to go overnight, and you will want to go to bed.
Rasayana85 1 year ago
how much does it cost to make one and/or how does one make it?
reusol 2 years ago
i'm going to make my own stir plate.
koragofmagic 2 years ago
Will you demonstrate an acid/base extraction with gassing equiptment?
amberpoovey 2 years ago
I'm just wondering: why are these magnetic stir heating plates so expensive? I remember quickly browsing through a couple of them on one of the websites that have been provided, but prices are almost the same as if you wanted to buy an actual kitchen stove.
Magnak 2 years ago 19
Good question, if you ever find out, let me know :)
NurdRage 2 years ago 12
@NurdRage Which model you have? Please tell me, I found just verry expensive stuff for like $100 up to $350
Ubojica6661 9 months ago
@NurdRage Which model you have? Please tell me, I found just verry expensive stuff for like $100 up to $350. Please tell me which model you use So I can buy it. THANX!
Btw Im watching you over a year. :)))
Ubojica6661 9 months ago
@NurdRage Why don't you have any videos on radioactive topics?
pikulicluka 1 month ago
@pikulicluka Are you serious? If so bear in mind that most radioactive isotopes are extremely dangerous to handle, are more expensive than you could imagine, and are downright impossible to get. Plus there's little you can DO with radioactive materials that falls into the category of "remotely interesting". There's little point in making videos about them along the line of Nurdrage's videos!
capnquack 1 month ago
@NurdRage oh that's easy: S(p) = 2p + 4p2 = 231 - 18p = D(p). Basic supply/demand equilibrium curve from micro-economics; S=supply, D=demand and p=price.
dagda825 1 month ago
@dagda825 That actually explains nothing, without actual values to insert into the equation it remains unsolved and thus unusable.
NurdRage 1 month ago
@NurdRage Really? It's a plain as h2o to me...
dagda825 1 month ago
@dagda825 not sure if trolling, or just stupid....
NurdRage 1 month ago
@NurdRage stupid i guess. sorry to have wasted your time. I'll unsubscribe now.
dagda825 1 month ago
@dagda825 thank you
NurdRage 1 month ago
@NurdRage Hi :3
bourky93 1 month ago
@Magnak most likely, because they know that many people would pay to have it.
gehtomacgyver 2 years ago
Still, it's kind of sad to see a high price on those seeing how it is a basic necessity when dealing with chemistry. XD For the record, I haven't figured out why they are that expensive... yet. :)
Magnak 2 years ago
well i just borrowed my teachers but the magnet didn't spin so i had to take apart and fix the nobe
but yeah if you do find out any other reason why they are so expensive let me know I'll be trying to find out also if i do i will let you know
gehtomacgyver 2 years ago
i guess cause they arent sold by big numbers and they have to have things that control the stir speed and temperature.
uut0 1 year ago
@Magnak stir plates alone are usually affordable, but a heat/stir plate can be expensive because of the programming, circuitry, and overall complexity required to both stir and heat without the machine igniting itself. Remember, companies would rather have you pay more to be safe then pay less just to get sued.
starshock01 9 months ago
@Magnak Mainly because everybody needs a stove, but not everybody in the world needs one of these, making production a lot higher for stoves. Lets say stoves are $1 and everybody needs one(I know...) and half of the people need one of these, so they either need to sell two to every one or raise prices to sell and make as much money as Kennmore and other brands make. Second, because people that want these can mainly be for occupations that NEED these, so they can raise the prices for them........
SharpShooter7thSt 5 months ago
@SharpShooter7thSt Third, because there are few brands that make them, thousands for stoves, meaning that they do not need to compete in the lowest prices...
You're welcome...
THUMBS DOWN IF THIS HELPED!
SharpShooter7thSt 5 months ago
@SharpShooter7thSt By the way, it didn't help much. I also checked once again, just to maybe finally get one this year or in 2012, the prices are around 240$ now.
Magnak 5 months ago
@SharpShooter7thSt Bad explanation... but I get your 'Offer & Demand' approach. But still, it has nothing to do with actual stoves, this is, most generally put, science equipment. (e.g.: beakers, grad. cylinders, etc)
Anyways, I posted that question a year ago... I did not expect people to still be trying to explain it.
Magnak 5 months ago
The vacuum pump system in the 100 foot glowstick video.
95Barqs1 2 years ago
cool.
Prozackityzac 2 years ago
It may be very simple.. but could you show us a fractional distillation apparatus?
kougsohv9 2 years ago
Cool, man the education system sucks.
curt4187 2 years ago
But they are fucking COOL
1zacster 2 years ago
we have these at school
scotfever 2 years ago
HIIIIIIII I was wondering if you could make a vid on the synthesis of copper acetate.. the two methods and why does the copper react with acetic acid fumes?
CuteNpurrfic 2 years ago
I direct you to a user named AlchemicalGarden who has a video on exactly that topic.
Titled: "Historic Chemistry: Verdigris"
NurdRage 2 years ago
hey nurdrage!!!!
you made on how to make TCPO and i saw that you had to weigh the chemicals very precisely so my question is, what do you use to weigh it so precisely? and, can you make a video about this instrument?
your loyal subscriber,
jbohbot
jbohbot1 2 years ago
maybe a scale? :D
You can but lab scales (they show differences up to 0,001g) for 650€
They even have a little chamber around them so the wind doesnt mess with you
RazielKain 2 years ago
cool. i never though a scale could be that precise.
jbohbot1 2 years ago
where do you buy it
fluffynekonate 2 years ago 2
How about a Flux Capacitor? ;P
salmiak911 2 years ago
how about a bunsen birner ( at least think thats how you spell it)
Airomaster121 2 years ago
NURD RAGE + chemicals → awesome
Mrluisao17 2 years ago 41
NurdRage always interesting!
blinking801 2 years ago 3
Yeah how do you coat things with teflon?
blinking801 2 years ago
It's very durable and unreactive due to the nature of the carbon-fluorine bonds in it, which are very strong.
ginogrz 2 years ago
dude, he didnt coat it with teflon himself, he bough it with the teflon already coated around the magnet!
jbohbot1 2 years ago
You know jbohbot1 I know that part is already coated with teflon. I was just making a general statement asking how do you coat a metal with something that is pretty chemically inert. Thought it might make an interesting video.
blinking801 2 years ago
oh oops. sry bout tht. next time, ask the question more clearly plz!
jbohbot1 2 years ago
sepretory funnel!!!!!!!!!
cathal6606 2 years ago
What possible use might you have for a sep funnel if you need a video to show you how to use one?
TalonPierce 2 years ago
Do you have supercondudcters?
s28400 2 years ago
yes. what is that glass this
jokes i know
Brentbmwh 2 years ago
Definitely cheaper to make one than buy one, especially if your like me with an old lathe and stereo equipment laying around. Now I just have to figure out how to teflon coat my stirrer...... electrolysis..? hmmm I'll post directions on my site when I finish.
karlanm925 2 years ago
I wanna see experiments on superfluids lol
karlanm925 2 years ago
For most reactions, you can just use a stir bar coated in glass, which is easy to make by just dipping a steel slug in molten glass. The main issue with it is the glass will wear and you'll get a very small amount of glass in your reactions, however it is cheap and easy.
MrFolgersSanka 2 years ago
what is your professiono, how do you have so much access to so much stuff ?
baddspella 2 years ago
Show Us Your Lab Please!!!
youngsie10 2 years ago
I want to see a busen burner :)
insanic1 2 years ago
y do u talk like that
bakerkid223 2 years ago
@bakerkid223
if the voice bothers you then you can turn off the sound and turn on the subtitles.
NurdRage 2 years ago 19
you have subtitles? thats awesome!
and thanks for the videos man, they have actually answered alot of questions i had.
im really interested in chemistry
hirodagger 2 years ago
@NurdRage why are you masking your voice.im just interested
dukilaki 1 year ago
@dukilaki Yeah what the she/he thing said. jk
SuperSkarmory2 1 year ago
@NurdRage i think he sounds great..
godool21 8 months ago
@NurdRage can you try put water in the beaker with a magnet in it??
TheUnknown921 8 months ago
@bakerkid223 Because he is just that manly!!
thunddude 1 year ago
so teflon is (the most?) very resistant to acids, is it becouse it cant "stick" on inte or is it just the material in it self that things cant react with as easy?
blidderbla 2 years ago
Dude, ur awesome, no wonders i subscribed to you!
Rolfmeister 2 years ago
I was wondering if you could share a way that hydrogen peroxide could be extracted from a solution of either a perborate or percarbonate. My rocket pack is running low on fuel, and Q isn't answering his telly.
7028301890193 2 years ago 2