Chemical formula: CaHPO4.2H2O(dihydrate) CAS NO.: 7789-77-7(dihydrate) INS No. : 341(ii) Applications: used in dentifrice as polishing agent. Packing: 25kg paper bag
CHARACTERISTICS
SPECIFICATION LIMITS
Color, odor, texture, taste
Pure, white odorless, tasteless fine powder
CaO %
31.4~32.9
whiteness
≥95
Finess （through 45um）%
≥99
Water absorbtion（mlH2O/20g）
5.0~6.5
density（g/mL）
0.80~1.00
Fluoride（as F）%
≤0.005
Chloride （as Cl）%
≤0.01
Loss on ignition %
25.0~26.5
PH(20% slurry)
6.9~8.1
Stability
Pass test
Carbonate
Pass test
Sulphate
Pass test
Iron（as Fe）%
≤0.01
Barium（as Ba）
Pass test
Insoluble in acid %
≤0.2
Loss on drying %
≤0.6
P2O5 %
40.7~42.5
Sulphate（as SO4）%
≤0.2
Heavy metals（as Pb）%
≤0.0015
Arsenic（as As）%
≤0.0003
Total Aerobic Count（CFU/g）
≤100
Mold And Yeast Count（CFU/g）
≤100
Staphylococcus Aureus
Negative to test
Gram Negative Bacilli
Negative to test
NOTE: Specification Limits are subject to change from time to time. Please contact us for current data sheet
