Chromate (hexavalent) Test Kits
Manufacturer: Chemetrics, Inc.
Hexavalent chromium salts are used in numerous industrial processes. They are also used extensively as corrosion inhibitors in open and closed cooling water systems. With the chromate test method, hexavalent chromium reacts with diphenylcarbazide under acid conditions to form a red-violet color. Results are quantified photometrically or by visual comparison with standards that are calibrated in ppm (mg/L) CrO4.