electropolishing of stainless steel in "acid" bath - after 25 minutes

[@babamusaabbagoni3638]

A superb presentation!

[@brianwhelan5382]

Very interesting, I am attempting to build a Brown's gas generator (electrolysis generator) but am having huge problem with the electrolyte turning red, this seems to be happing because of the iron on the 316 stainless steel plate surface, I did a couple of types of passivation but was not successful in stopping the reddish colouring appearing in the electrolyte, I'm wondering would your electropolishing method work? Am I right in understanding that the two solutions in the beaker need to be heated and if so what temperature? Great video.

[@wageslave387]

316 should be fine for an oxyhydrogen generator. The red is usually iron from the plates corroding. Can't remember if due to excess voltage or current, but I am fairly certain it was current. There are recommendations to limit either voktage or current to a certain amount per square cm of each electrode. Back when I messed with it we just used those square 316 sheets, I think like 8"x8", or 6"x6" plates separated maybe 1/8 or so apart. But voltage was pretty low, 12v. Electrolyte was KOH or NaOH. Some people used both. Tl;dr 316 is fine, but your volts/amps/electrolyte or something else in your setup is not right and it's corroding your plates.

[@crispyshaw9204]

Remember to wear gloves when handling the sample from the concentrated acid bath

[@ChandraSekhar-ow2lr]

How can I buy the setup?

[@ChandraSekhar-ow2lr]

How can we do electro polishing for gold?

[@RiyaMali-sz9ke]

How to remove iron and other containment in electropolishing solution

[@timothyhackett7372]

Straine with

[@johnnycash4034]

Does it make toxic chromium gassed or compounds?

[@10evBandgap]

Hi - no real problem with chromium toxicity and no toxic gas is evolved- the main hazard is handling concentrated sulphuric acid during the mixing process. hope that was useful reply and thanks for your question - we will make more in-depth videos soon

[@leonard8217]

impressive !

[@10evBandgap]

thanks - we will make more of these