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Left to Right: Cr(NO3)3, CrCI2, K2CrO4, K2Cr2O7
Chromium salts are produced by removal of iron by sodium carbonate and calcium oxide to form water soluble chromium salts. Left to Right: Chromium Nitrate, Chromium Chloride, Potassium Chromate, Potassium Dichromate.
Copyright:© 1989 Chip Clark - Fundamental Photographs
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