Product

Calcium Carbonate (Pharmaceutical)

Chemical Name:Calcium Carbonate
Formular: CaHPO4.2H2O
Molecular Weght:172.09
Specifity: White, monoclinic crystalline powder; soluble in dilute Hydrochloric, Nitric and acetic acids, slightly soluble in water , insoluble in ethanol, when heated to 75, it may lose crystal water, convert to Anhydrous.
Quality Standard:

Name of index

HG3257-1990

According to the contract ZA2002

Fine grade

Grade1

Stability

Accord with the test

 

Accord with the test

PH value(20% turbid liquid)

7.6-8.3

7.6-8.3

6.9-8.1

Loss on ignition,%

24.5-26.5

24.5-26.5

24.5-26.5

Carbonate

Accord with the test

Accord with the test

Accord with the test

Fineness(passing through 45Umtest sieving),≥%

97.0

95.0

99.0

Sulfides

Accord with the test

Accord with the test

Accord with the test

Chlorides(Cl),≤ %

0.03

0.03

0.03

Absorptive water capacity(ml/20g)

5.0-6.5

4.5-6.5

4.5-6.5

Content( As CaO)%

32.0-33.0

31.5-33.0

31.4-32.9

As,≤%

0.0005

0.0001

0.0001

Heavy metals(As Pb), ≤%

0.003

0.001

0.001

Fluoride (As F), ≤%

0.005

0.005

0.005

Degree of whiteness, ≥

95

95

95

P2O5,%

   

40.7-42.5

Content,%

   

98.5 min

60 D.C. Water Loss

   

0.6 pct. max

Titration value

   

57-61ml

Set Test

   

Pass Test

Acid Insolubles,%

    

0.2 max


Uses: In daily chemical industry, it is used as frictional agent for making top quality tooth paste, especially foaming type tooth paste.
Packing: 25kgs net paper bags or 25kgs or 1000kgs plastic woven bags
Storage and Transport: It should be stored in a dry, Ventilative and clear warehouse; kept away from moisture and hot, Furthermore, it should be stored separately from poisonous substances.