![]() ![]() ![]() 1), and zinc potassium chromate ( CAS No. ), dichromic acid (CAS No.1), potassium chromate ( CAS No. ![]() Other examples of hexavalent chromium compounds that can be used to treat water are: Chromic acid ( CAS No. Hexavalent chromium-based water treatment chemicals that contain hexavalent chromium, usually in the form of sodium dichromate ( CAS No. ยง 749.68 Hexavalent chromium-based water treatment chemicals in cooling systems. ![]()
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