Chemicalformula: CaHPO4.2H2O
CAS NO.:7789-77-7
Applications:used in dentifrice as friction agent
Packing:25kg bag, 1000kg huge bag
Item | Specification |
Appearance | white powde |
CaO,w/% | 31.4~32.9 |
P2O5,w/% | 40.7~42.5 |
Whiteness (Wg ) | ≥93 |
PH（20% solution） | 6.8~8.1 |
Particle size:（＜45μm）,w/% | ≥99.0 |
Water Absorbition（mlH2O/20g） | 5.0~6.5 |
Apparent density，ρ/（g/cm3） | 0.80~1.00 |
Stability | Passes test |
Fluoride Stability | Passes test |
Loss on ignition,w/% | 25.0~26.5 |
Loss on drying(60℃),w/% | ≤0.6 |
Heavy metals as Pb,w/% | ≤0.002 |
Arsenic as As,w/% | ≤0.0003 |
Iron（Fe）,w/% | ≤0.01 |
Fluoride as F ,w/% | ≤0.005 |
Chloride as Cl ,w/% | ≤0.03 |
Carbonate | Passes test |
Sulphate as SO4,w/% | ≤0.5 |
Sulfides | Passes test |
Matter Insoluble in Acid ,w/% | ≤0.2 |
Total aerobic count（CFU/g） | ≤200 |
E.coli /g | Negative to test |
Staphylococcus aureus /g | Negative to test |
Pseudomonas aeruginosa /g | Negative to test |
Yeast & mold（CFU/g） | ≤200 |
Note: Theproduct can be customized according to buyer’s requirements.