Used as a corrosion inhibitor, chemical nickel-plating additive, animal nutrition supplement, and also used in pharmaceutical manufacturing as an antioxidant and analytical reagent.
Physical and Chemical Properties:
1. Appearance: White powder;
2. Solubility: Soluble in water, insoluble in alcohol. Solubility in water at room temperature is 16.7g/100g water;
3. Molecular formula: Ca(H2PO2)2;
4. Molecular weight: 170.06;
5. CAS number: 7789-79-9.
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| Item | Quality Index |
| Calcium dihydrogen phosphate (Ca(H2PO2)2) % | 98% Min |
| Lead (%) | 0.001% Max |
| Arsenic (%) | 0.0005% Max |
| Barium (%) | 0.005% Max |
| Water-insoluble (%): | 0.5% Max |
| Acidity | Qualified |