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【 Molecular formula 】Cr(NO3)3.9H2O
【 Molecular weight】400.15
【 CAS NO.】7789-02-8
【 Character 】Dark purple orthorhombic monoclinic crystal. Oxidizing. The melting point is about 60 ℃. Low toxicity and irritant.
【 Use 】Used in glass manufacturing, printing and dyeing equipment, chromium containing catalyst, etc.
【 Package】 25 kg paper plastic composite bag or as requested by the customer.
【 Notes 】During storage and transportation, pay attention to moisture-proof, heat proof, impact proof and keep away from combustibles.
【 Executive criteria】 HG 3-936-76
Inspection items | Standard indicators (%) | Assay result (%) |
Cr(NO3)3.9H2O | ≥98% | 99.12% |
Chromium (Cr) | 12.88% | / |
Calcium (Ca) | ≤0.01% | 0.00% |
Sodium (Na) | ≤0.02% | 0.00% |
Potassium (K) | ≤0.02% | 0.00% |
Chlorine (Cl) | ≤0.01% | 0.00% |
Iron (Fe) | ≤0.01% | 0.00% |
Aluminum (Al) | ≤0.05% | 0.00% |
Sulfate (SO42-) | ≤0.02% | 0.00% |
Water insoluble | ≤0.02% | 0.00% |
Manufacturing
