Basic Info. Model NO.:98% Appearance:Powder Grade Standard:Industrial Grade CAS:7775-11-3 Trademark:hk Transport Package:Standard Packing, as Your Requirement Specification:CE, SGS Origin:China
sodium chromate basic information:
Appearance: Yellow crystal
sodium chromate index:
|(Na2CrO4·4H2O)% ||98.0 |
|pH(50g/L solution,25ºC) ||8.5~9.5 |
|Water insolubles% ||0.01 |
|Chloride % ||0.01 |
|Sulfate (SO4) % ||0.05 |
|K% ||0.05 |
|Aluminum% ||0.01 |
|Calcium% ||0.001 |
sodium chromate usage:
Oxidation, used in dye, tanned leather and chrome yellow pigment, etc. Antioxidant, mordant, rust inhibitor. The four six hydrate, hydrate, hydrate decahydrate. Industrial products for four hydrate, yellow slightly deliquescence crystallization. Heated to 68 ºC lose crystal water be alpha anhydrous sodium chromate, type 413 ºC into beta. Oxidation, easy for common reductant reduction for trivalent chromium.
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Product Categories : Other Inorganic Salts