1. Chemical name: Dicalcium Phosphate Anhydrous
2. M. F: CaHPO4.2H2O
3. M.W:208.09
4. Physical properties: Whitish powder; Odorless; Soluble in diluted Hydrochloric Acid, Nitric Acid and Acetic Acid; Slightly soluble in water but insoluble in Ethanol; Stable in air; Relative density: 2.32.
5. Quality standard: (GB,FCC)
Quality Index | GB1889-2004 | FCC(1997) |
Appearance | White powder | White powder |
Assay(CaHPO4.2H2O) | 98.0-103.0 | 97.0-105.0 |
As<% | 0.002 | 0.003 |
Pb(GT-18-3)≦% | 0.0005 | 0.0002 |
Fluoride(F)≦% | 0.05 | 0.05 |
Heavy metal(Pb)≦% | 0.001 | 0.0015 |
Loss on ignition(850℃)% | 24.5-26.5 | 7.0-8.5(Anhydrous) |
24.5-26.5(Dihydrate) | ||
Insoluble matter in Hcl≦% | 0.05 | ------- |