Dangerous carcinogen from spoons and forks, dichromates (electrolysis process)

[@ciprianurea2752]

Very cool video! The souce of those impurities is the fact that stailess steel is not just chromium and iron, it also has mangnese, nickel, carbon(in large proportions) and some other junk. As a tip, unrelated to the actual synthesis, i recommend cleaning your lab more often since it can lead to massive contaminations and also, when you test for ph, try to use a pipette or a glass rod to wet the litmus and not dip it in the reaction flask. Apart from that great work and keep going!

[@jam_kemist3986]

Thank you very much for your advise ! 🥖❤️

[@BijouFrumushelu]

i did not understand if the sodium dichromate is the final thing in the becker or in the filter

[@BijouFrumushelu]

Can i use 3% hydrogen peroxide instead of 30%?

[@jam_kemist3986]

Yes, you just need to use the equivalent amount of H2O2 so 10 times more

[@BijouFrumushelu]

@@jam_kemist3986 Ok, thank you very much

[@schinderiapraemeturus6239]

Very nice, i discovered this idea by accident using a piece of chromium steel plate for the cathode in an electroysis experiment last year. I was driving the cell current using a 40 watt solar panel. This is actually a quite useful way to obtain various metal alloys in the form of their salts, besides selective solvents and fractional crystallization a magnet passed over the dried 'sludge' powder can help take out iron oxide. Good work!

[@jam_kemist3986]

Thank you ! That's actuelly a very good idea if the powder is very fine, if the oxides are too mixed it may not work tho I'll definitly try next time I do this !

[@petevenuti7355]

​@@jam_kemist3986if you try it, then put your magnet in a plastic bag and do it while in a dilute suspension to keep the iron oxides/hydroxides separate from the other precipitates. Not every oxidation state of iron sticks. It should separate nickel as well.

[@jam_kemist3986]

@@petevenuti7355 thanks for the comment ❤️ !

[@petevenuti7355]

What about Vanadium? Would that become soluble too?

[@jam_kemist3986]

What do you mean by vanadium ? In some alloys you might find vanadium but it would be in such a small quantity that I would not bother but maybe it's possible idk, If you need vanadium, I recommend buying a small amount of V2O5 it's sold as a potery pigment. Thanks for watching and commenting ❤️ !

[@petevenuti7355]

@@jam_kemist3986 I've obtained a number of elements from pottery pigments, copper, bismuth fluorine, lithium and yes chromium too, and I still didn't realize vanadium was an option! I'll look into that, thanks!

[@chemicalmaster3267]

@jam_kemist You don´t need to decompose the metal hydroxides into oxides in order to make the chromate or dichromate salts you want, it still works well with the hydroxides.

[@jam_kemist3986]

Well yes it does work if you don't care about the stoechiometry, I needed to isolate them to know how much I had bcz I didn't thought about weighting the fork and spoon yet at that time. If you weight the fork and spoon before and after and do the math it's fine I guess 😌 also you don't have to mesure H2O2 since the exess would anyway decompose when boilling down 👌🏻 Anyway Thanks for watching have a good day ! 🙂

[@chemicalmaster3267]

@@jam_kemist3986 Yeah, but chromium(III) hydroxide reacts more easily with the sodium hydroxide and hydrogen peroxide mixture, increasing the yield. I would bet there´s still quite a bit of chromium in the leftover metallic sludge. I think it´s easier and a bit more convenient to dissolve the stainless steel in acid, precipitate the metal hydroxides, filter and wash them and finally do the oxidation of the chromium(III) hydroxide into a soluble chromate.

[@jam_kemist3986]

@@chemicalmaster3267 trust me, you don't wanna filter metal hydroxides from a solution, what I mean is that the NaCl will be very hard to completly remove from sludge, so while it takes longer to use electrolysis, it still worth if you don't wanna filter sludges for decades

[@Energetics_Testing]

+1 abonné, belle vidéo,continue comme ça 👍

[@jam_kemist3986]

Merci beaucoup ! Je fait de mon mieux pour améliorer la qualité a chaque vidéo !

[@dixanyl]

Which substitude can i use for sodium hydroxide? the NaOH i have is really contaminated

[@jam_kemist3986]

if you have any other stong hydroxide like KOH you can use it, but I recommend you purify your NaOH by recristallisation ! there are lots of great tutorials on yt, just make sure you know what you are doing and wear proper protection like gloves not like me, I don't want to give a Bad exemple but I didn't had any gloves yet, anyway thanks for watching and commenting ! ❤️

[@petevenuti7355]

Don't use ammonium hydroxide as it will solubilize some nickel, I'm not sure if it will complex any of the other metals.

[@chemistryofquestionablequa6252]

@@petevenuti7355copper too if there’s any in there

[@TheDIYChemist]

Thanks for shotout

[@jam_kemist3986]

No problem ! It's normal 👌🏻

[@ns-li4pr]

There is a high chance that the chromium hydroxide desolved in the basic solution

[@jam_kemist3986]

That's the point, you need to form the complex to oxidate it to chromate

[@jesscorbin5981]

Is antibacterial soap really carcinogenic?

[@jam_kemist3986]

Soap is not but dichromates are so put some gloves not like me lol

[@jam_kemist3986]

new server with @Mryellow and @salt and peroxide ! discord.gg/gpntKUgNHm

[@alvg153]

That's very nice indeed but one thing for the love of god put on some gloves when doing this, especially with chromium VI

[@jam_kemist3986]

I will for all next videos lol, but don't worry none came into contact with me

[@keisisqrl]

Terrifying, have a nice day. Also… what about the sodium sulfate?

[@jam_kemist3986]

It does contaminate the solution a bit but if you stop heating as soon as dichromate cristallise it should be mostly left in solution, an alternative is using glacial acetic acid as sodium acetate is more soluble then Na2SO4 but I didn't had any, maybe for a next time :) Have a nice day as well !

[@factking9198]

Hello sir l am Indian ❤❤❤❤❤

[@jam_kemist3986]

Hello !

[@jackadam9486]

By the looks of your lab.. It was clear from the beginning that you don't give a f**k about anything.... specially life...and you proved me right in the end....😂😂😂😂😂😂😂

[@jam_kemist3986]

What do you mean I proved you right ? I had no direct or even indirect contact with the dichromate, not wearing gloves was not a smart idea tho, but nothing happened so I'm fine lol