CJD-030104

CALCIUM HYDROGEN PHOSPHATE DIHYDRATE

 

SYNONYM: DICALCIUM HYDROGEN PHOSPHATE DIHYDRATE;

CALCIUM PHOSPHATE DIBASIC DIHYDRATE;

CALCIUM MONOHYDROGEN PHOSPHATE DIHYDRATE.

 

FORMULA: CaHPO4·2H2O

 

M. W.: 172.09

 

CAS NO.: 7789-77-7

 

GRADE: DENTAL GRADE

 

DESCRIPTION: WHITE PULVERIZED POWDER, ODOURLESS, TASTELESS. SOLUBLE IN DILUTE HYFROCHLOIC, NITRIC AND ACETIC ACID, SLIGHTLY SOLUBLE IN WATER, INSOLUBLE IN ETHANOL,WHEN HEATED TO 75℃, IT MAY LOSE CRYSTAL WATER, CONVERT TO ANHYDROUS.

 

SPECIFICATIONS:

PH VALUE (20% SOLUTION)

6.9-7.8

FINENESS (PASSING 325 MESH SIEVE)

99% MIN.

STABILITY

PASS TEST

LOSS ON IGNITION (800℃)

24.5-26.5

CARBONATE (AS CO3)

PASS TEST

SULFIDES (AS S)

NO

CHLORIDE (AS Cl)

0.030% MAX.

ABSORPTIVE WATER (ml/20g)

5.0-6.5

CaO

32%-33%

ARSENTIC (AS As)

0.0008% MAX.

HEAVY METALS (AS Pb)

0.0030% MAX.

FLUORIDE (AS F)

0.005% MAX.

WHITENESS

95 MIN.

LOSS WATER (60℃)

0.6% MAX.

DENSITY (g/ml)

0.8-1.00

 

USES: WIDELY USDE AS POLISHING AGENT IN DENTIFRICE.

 

PACKING:   PACKED IN 25KG OR 50KG PLASTIC WOVEN BAG.