containing hexavalent chromium compounds

Full Title

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using aqueous solutions > using aqueous acidic solutions with pH less than 6 > containing hexavalent chromium compounds

Child Classifications

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• C23C 22/26 containing also organic compounds
• C23C 22/30 containing also trivalent chromium
• C23C 22/32 containing also pulverulent metals
• C23C 22/33 containing also phosphates