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.