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Calcium Carbonate
Molecular formula:CaCO3
Molecular weight:100.09
CAS No.:471-34-1
Property:White powder, odorless, stable in air, slightly hygroscopic. Soluble in ammonium chloride solution, difficult to dissolve in water and alcohol.
Usage:Used in dope, rubber, plastic, making leather, making paper, electric wire, cable industry etc.
Packing:Net in 25KG paper bag/ polypropylene plastic woven bag.
Specification:


Substances

Index

First-class

CaCO3(as dry basis)

97% Min

PH (10% solution)

9.0-10.5

105℃  volatile

0.7% Max

Insoluble matter in HCl

0.2% Max

Sedimentation volume

2.6 mL/g Min

Fe

0.1% Max

Mn

0.008% Max

Whiteness

90 Min

Screening

Remainder

125µm sieve

0.01%

45µm sieve

0.4%