LanthanumK
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Electrowinning Chromium
What is the best chromium compound to obtain chromium from by electrowinning? e.g. NaCrO4, CrCl3
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m1tanker78
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If you just want to demo plate chrome on a substrate, a solution of sodium (di)chromate in distilled H2O + H2SO4 should get you there. If you want to
isolate some bulk metal or plate a part with 'show chrome', it's going to be very difficult unless you have access to the proper equipment and
chemicals (some proprietary). Bright chrome needs lots of prep work as well as pre-plating other metals (depending on the substrate).
Chromic acid / anhydride is usually the salt of choice in the biz.
Tank
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LanthanumK
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I had obtained chromium from electrolysis of a Cr(3+) solution but it was composed of black small hard crystals. So it appears that the more toxic
Cr(6+) produces a truer chromium color.
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