It seems you are trying to make pure ZnS and avoid contamination. But I recall you have a TIG welder (argon gas) and a home furnace (clean high temperatures). Therefore you might try putting your zinc powder and sulfur mixture in a tube in the furnace under a flow of inert gas? This is closer to how a chemical laboratory would do it. Put plugs of glass wool either side to keep it in place.
How cool! I believe using a penny may cause concentration quenching by having too much Cu in it. The best ZnS:Cu phosphors have around 0.01% Cu whereas pennies have 2.5% total and 0.8% in the "zinc" core. That may be why there is a such short glow time.
How cool! I believe using a penny may cause concentration quenching by having too much Cu in it. The best Zn:Cu phosphors have around 0.01% Cu whereas pennies have 2.5% total and 0.8% in the "zinc" core. That may be why there is a such short glow time.
Do you know of any chemical that can be safely injected into the blood stream in order to glow for a short amount of time without side effects such as death? Like luminol but without the death.
@jeriellsworth because I calculated the exact amount of sulphur and zinc that have to react to produce the zinc sulfate (and added a bit more of sulphur just to be sure that there wont be any extra zinc to burn). Than I mixed those two REALLY well and when I reacted them, it was so well mixed that the mixture reacted all at once and exploded rather than burned, the reaction lasted about one second.
isnt it easier to just mix zinc and sulphur and ingnite them (caution, if you use more than 10g of the mixture it can explode) and than mix in the copper powder to the product of this reaction (powdered ZnS)?
Filing on the lathe can be dangerous. If you really must do it, a tip is to run the lathe backwards, if possible. That way the file will not be driven into your hands or chest when (not if) the chuck or workpiece grabs the file. A filing rest is also a useful lathe attachment for doing this sort of thing. Preserve those hands to bring us more of your great videos!
@nabiul2 Did you seriously feel it even *might* be appropriate to leave that comment? Here's a suggestion: look up Jeri Ellsworth on Wikipedia, even. I'm sure that you're a fan of citing it as an informational source, so go ahead and find some information on how much more intelligent and skilled she is in comparison to yourself.
@ChrisKarr Just because you're too stupid or unqualified to spot dangerous experimentation methods does not mean that you can declare what someone else is doing as being safe, regardless of their qualifications.
This 'intelligent' person first begins by trying to cause a chemical reaction with a butane lighter, she then uses a direct flame from a blowtorch to burn away the reactants and produce nothing but metal oxides and dangerous vapours.
@nabiul2 So, you open by directly insulting me? That's very admirable.
Also, what's the point of doing anything if it's not experimentation? You're so very closed-minded. If you're a scientist, you're going to be spending the rest of your life trying to verify the work of others, since you're obviously not fond of a new idea.
@ChrisKarr As if that wasn't enough to give you an indication of her 'intelligence', she then uses the blow torch, capable of melting glass, to ruin a test tube. The bright yellow flame is actually the test tube 'burning'. She then goes on to using a bolt...which is a hexagonal shape to 'cork off' a cylindrical test tube...
She used the blow-torch because it's the tool she had on-hand and which would be most-efficient at heating the reactants quickly.
So, since she's melting a test-tube, you feel the need to insult her intelligence? I must say, you must be a sad, sad person to feel it necessary to insult others in order to feel good about yourself.
@ChrisKarr Around 0:37; you clearly did not watch the video or listen to the commentary. Experimentation is not doing random things and hoping it will work. She uses a lighter for gods sake to try and melt metals.
Yes I need to insult her intelligence, any one with a simple working knowledge of chemistry would realise that there is something wrong with trying to melt metals inside a glass 'crucible'. I could say more but this is a waste of my time. Send her a marriage proposal already.
@jeriellsworth "any one with a simple working knowledge of chemistry would realise that there is something wrong with trying to melt metals inside a glass 'crucible'." - nabiul2
Well, what about aluminum or copper? Anyone with a 'working knowledge' of chemistry knows that their melting point is high above that of zinc...but look at what happens when Cu or Al contact liquid Zn - they dissolve. Hmm...maybe that happens with S and Zn(?).
He's threatened by your intelligence, so he insults it.
I should also add that the white smoke wafting out of the top of the test tube and the bare powder on the plate is zinc vapour. Zinc has a really low boiling point of around 900C, INHALING ZINC VAPOURS WILL GIVE YOU HEAVY METAL POISONING.
Look up metal fume fever.
Extra information like this is why you should not emulate anything that 'home experimenters' and 'hackers' do without fist learning about the dangers involved with the materials that you will be using.
@nabiul2 Yes. Yes. We all know not to weld galvanized pipes for this reason.
BTW. Zn and S can be ignited with a low temperature flame when in a fine enough powder form and I was not trying to block the fumes coming out of the tube with a bol, but limiting the oxygen entering the tube in a similar way describe in a patent for making ZnS
Jeri, you are taking some big risks with nasty stuff.
I expect you enjoy that, but sometime around when you lose your sense of smell or have your second or third explosion/fire remember your life is valuable.
How about making some thermocouples. Then you would have a way to monitor the temperature and not overheat your mixture. Also, could you have used your "Easy Bake" furnace to have a little more controlled heating of your chemicals.
My attempt to do this a few years back wasn't very successful, but I did get some particles with a bit of persistence. I also got some orange-glowing particles.
Do you have an argon tank? Maybe try a blanketing atmosphere?
@vk2zay I got some orange glowing after trying to use it for an EL display. I did see some brilliant green specks in the EL operation, but it was very sparse.
will u marry me !
theoriginalguy11 2 months ago
Why is this video age restricted? It shouldn't be by my estimation.
MichaelJE2 5 months ago
God i wish i was good at chemistry
colorme3vil 6 months ago
It seems you are trying to make pure ZnS and avoid contamination. But I recall you have a TIG welder (argon gas) and a home furnace (clean high temperatures). Therefore you might try putting your zinc powder and sulfur mixture in a tube in the furnace under a flow of inert gas? This is closer to how a chemical laboratory would do it. Put plugs of glass wool either side to keep it in place.
ib9rt 7 months ago
How cool! I believe using a penny may cause concentration quenching by having too much Cu in it. The best ZnS:Cu phosphors have around 0.01% Cu whereas pennies have 2.5% total and 0.8% in the "zinc" core. That may be why there is a such short glow time.
Nonetheless, its a very cool video.
MsToobz 7 months ago
How cool! I believe using a penny may cause concentration quenching by having too much Cu in it. The best Zn:Cu phosphors have around 0.01% Cu whereas pennies have 2.5% total and 0.8% in the "zinc" core. That may be why there is a such short glow time.
Nonetheless, its a very cool video.
MsToobz 7 months ago
Thumbs up if you don't understand this xD
CoNeGate7Delije1989 8 months ago
I think I just fell in love with you science lady.
Maybe I could come over and we could talk about batteries over some cake and coffe.
azkeyz 10 months ago
2:13
It has sulfur in the place of oxygen. Nice video!
TheBubaSqua 1 year ago
hello Jeri. I'm from thailand.
your Idea is very good.
but my country no have Tarn-x.
What can I substitute Tran-x.?
What should I do.?
thank you for good idea.
rachchakit 1 year ago
Cool video. Hydrogen Sulphide is indeed very dangerous, be careful folks.
.
&eB
kinglonewolf104 1 year ago
DynaDuctINC wouldnt that mean you would have a glowing dot in ur blood stream...?
RabaShibaRabaSha 1 year ago
Try flooding argon gas and see what happens. Oxygen is more reactive than sulphur . I am going try it myself. I have argon!
TheSolarmike 1 year ago
Do you know of any chemical that can be safely injected into the blood stream in order to glow for a short amount of time without side effects such as death? Like luminol but without the death.
DynaDuctINC 1 year ago
@DynaDuctINC I don't. Wouldn't that be cool if you could?
jeriellsworth 1 year ago
@jeriellsworth because I calculated the exact amount of sulphur and zinc that have to react to produce the zinc sulfate (and added a bit more of sulphur just to be sure that there wont be any extra zinc to burn). Than I mixed those two REALLY well and when I reacted them, it was so well mixed that the mixture reacted all at once and exploded rather than burned, the reaction lasted about one second.
kzalesak4 1 year ago
@jeriellsworth I got excellent results in producing extra pure ZnS, though I didnt try to make the glowpowder yet.
kzalesak4 1 year ago
@kzalesak4 How did you test that is was pure ZnS and not contaminated with ZnO?
jeriellsworth 1 year ago
isnt it easier to just mix zinc and sulphur and ingnite them (caution, if you use more than 10g of the mixture it can explode) and than mix in the copper powder to the product of this reaction (powdered ZnS)?
kzalesak4 1 year ago
@kzalesak4 So far my results were very poor just burning sulfur and zinc.
jeriellsworth 1 year ago
Filing on the lathe can be dangerous. If you really must do it, a tip is to run the lathe backwards, if possible. That way the file will not be driven into your hands or chest when (not if) the chuck or workpiece grabs the file. A filing rest is also a useful lathe attachment for doing this sort of thing. Preserve those hands to bring us more of your great videos!
1944GPW 1 year ago
that is pretty cool ! I wish I could buy some bulk zinc on the cheap !
that zinc sulfide phosphor looks a lot like the phosphor in one of my older scopes, even the afterglow time looks about the same
I bet a slightly more refined process would yield pro-level results
maybe using purer stock and a refractory oven with J thermocouples and you'd get more consistent results ?
shodanxx 1 year ago
@nabiul2 Did you seriously feel it even *might* be appropriate to leave that comment? Here's a suggestion: look up Jeri Ellsworth on Wikipedia, even. I'm sure that you're a fan of citing it as an informational source, so go ahead and find some information on how much more intelligent and skilled she is in comparison to yourself.
Have a great day, - Christopher
ChrisKarr 1 year ago
@ChrisKarr Just because you're too stupid or unqualified to spot dangerous experimentation methods does not mean that you can declare what someone else is doing as being safe, regardless of their qualifications.
This 'intelligent' person first begins by trying to cause a chemical reaction with a butane lighter, she then uses a direct flame from a blowtorch to burn away the reactants and produce nothing but metal oxides and dangerous vapours.
nabiul2 1 year ago
@nabiul2 So, you open by directly insulting me? That's very admirable.
Also, what's the point of doing anything if it's not experimentation? You're so very closed-minded. If you're a scientist, you're going to be spending the rest of your life trying to verify the work of others, since you're obviously not fond of a new idea.
ChrisKarr 1 year ago
@ChrisKarr As if that wasn't enough to give you an indication of her 'intelligence', she then uses the blow torch, capable of melting glass, to ruin a test tube. The bright yellow flame is actually the test tube 'burning'. She then goes on to using a bolt...which is a hexagonal shape to 'cork off' a cylindrical test tube...
Do I need to keep going?
nabiul2 1 year ago
@nabiul2 Where does she use a bolt as a stopper?
She used the blow-torch because it's the tool she had on-hand and which would be most-efficient at heating the reactants quickly.
So, since she's melting a test-tube, you feel the need to insult her intelligence? I must say, you must be a sad, sad person to feel it necessary to insult others in order to feel good about yourself.
ChrisKarr 1 year ago
@ChrisKarr Around 0:37; you clearly did not watch the video or listen to the commentary. Experimentation is not doing random things and hoping it will work. She uses a lighter for gods sake to try and melt metals.
Yes I need to insult her intelligence, any one with a simple working knowledge of chemistry would realise that there is something wrong with trying to melt metals inside a glass 'crucible'. I could say more but this is a waste of my time. Send her a marriage proposal already.
nabiul2 1 year ago
@ChrisKarr Don't let nabiul2 troll you. He's just feeling threatened for some reason.
jeriellsworth 1 year ago
@jeriellsworth "any one with a simple working knowledge of chemistry would realise that there is something wrong with trying to melt metals inside a glass 'crucible'." - nabiul2
Well, what about aluminum or copper? Anyone with a 'working knowledge' of chemistry knows that their melting point is high above that of zinc...but look at what happens when Cu or Al contact liquid Zn - they dissolve. Hmm...maybe that happens with S and Zn(?).
He's threatened by your intelligence, so he insults it.
ChrisKarr 1 year ago
Wooooh :o
LunaVorax 1 year ago
I should also add that the white smoke wafting out of the top of the test tube and the bare powder on the plate is zinc vapour. Zinc has a really low boiling point of around 900C, INHALING ZINC VAPOURS WILL GIVE YOU HEAVY METAL POISONING.
Look up metal fume fever.
Extra information like this is why you should not emulate anything that 'home experimenters' and 'hackers' do without fist learning about the dangers involved with the materials that you will be using.
nabiul2 1 year ago
@nabiul2 Yes. Yes. We all know not to weld galvanized pipes for this reason.
BTW. Zn and S can be ignited with a low temperature flame when in a fine enough powder form and I was not trying to block the fumes coming out of the tube with a bol, but limiting the oxygen entering the tube in a similar way describe in a patent for making ZnS
jeriellsworth 1 year ago
thumbs up for kitty! :D love your ... scientificy! (A) :P really cool stuff!
LPchief 1 year ago
How about customize brains, i am sure all blonde girls will need one, dude Paris Hilton too. You would be so rich^^
Arkanii1 1 year ago
This comment has received too many negative votes show
useless bitch
merdadocaramba 1 year ago
@merdadocaramba Another pleased customer!
jeriellsworth 1 year ago 7
This has been flagged as spam show
Teach us how to make METH with household chemicals!
just kidding
venetken 1 year ago
This has been flagged as spam show
Teach us how to make METH with household chemicals!
venetken 1 year ago
Comment removed
venetken 1 year ago
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venetken 1 year ago
Jeri, you are taking some big risks with nasty stuff.
I expect you enjoy that, but sometime around when you lose your sense of smell or have your second or third explosion/fire remember your life is valuable.
tomson600 1 year ago
@tomson600 Bah. No worries. :)
jeriellsworth 1 year ago
This is great, Jeri. I actually have a use for a low-persistence phosphor--though I was going to have to take apart an old CRT...
If you refine this, please give us more (and weights and measures, maybe).
(CSC still sucks.)
gggmoon 1 year ago
she probably cant cook neighter:)
Dzanar 1 year ago
0:20 xD
NMblindBBC 1 year ago
make a video how to build a atom bomb
biadieso 1 year ago
you nearly burned your kitteh!
Arishava 1 year ago
@Arishava Kitteh is very good at running away when the fire comes out.
jeriellsworth 1 year ago
Very Cool!
LucidScience 1 year ago
Gold Jeri, you nedd to make Gold!.
Albinorama 1 year ago 5
@Albinorama he will have to use huge ammounts of energy, but it is possible to make gold ;)
TheMostStupidVids 1 year ago
Hope u don`t turn evil...or we`re all screwed!
heineisallmighty 1 year ago
You're like the scientist my 12 year old self wanted to be, but cooler.
Tystarr2k2 1 year ago
Excellent! At home chemistry is awesome!
chemhacker 1 year ago
why is there only 1 of this woman... <3
frogz 1 year ago
Very interesting. Thanks for sharing.
fronkenpoop 1 year ago
I love how the laser draws patterns in it at the end.
markiduval 1 year ago
Be careful kitty.
spektrum1983 1 year ago 17
@spektrum1983 Kitty is fearless like me.
jeriellsworth 1 year ago
How about making some thermocouples. Then you would have a way to monitor the temperature and not overheat your mixture. Also, could you have used your "Easy Bake" furnace to have a little more controlled heating of your chemicals.
googacct 1 year ago
Very interesting, keep it up.
xXdenhartXx 1 year ago
This was very confusing.... too much and too short to understand what you actualy did there.
Maybe you can make a simple "slow" :P video only about the experiment that did work?
morto360 1 year ago
@morto360 Sorry it was so fast. I will continue refining this process and post updates.
jeriellsworth 1 year ago
My attempt to do this a few years back wasn't very successful, but I did get some particles with a bit of persistence. I also got some orange-glowing particles.
Do you have an argon tank? Maybe try a blanketing atmosphere?
vk2zay 1 year ago
@vk2zay I got some orange glowing after trying to use it for an EL display. I did see some brilliant green specks in the EL operation, but it was very sparse.
jeriellsworth 1 year ago
Three videos in two days! It's going to take me ages to get down from my Jeri high.
frac 1 year ago
More kitty videos!!
Afrotechmods 1 year ago
What? Still no fume hood?
kenatiod 1 year ago
I burst at laughing at, "It's just a Gottlieb".
VividSauce 1 year ago
Your really inspirational. Thanks for all your videos.
Trihedralguy 1 year ago
Flowers of sulfur(sublimated sulfur)? You said you can get it from the drug store, is this what you should ask for or does it have another name?
itchesavvy 1 year ago
Hi Jeri,
Nice tutorial. Can this be used in EL wire ? or is it purely a luminous powder
Harani66 1 year ago
@Harani66 There seems to be some that works in EL mode, but very sparse.
jeriellsworth 1 year ago