|
Product name |
Calcium carbonate |
|
Specification |
Reagent grade |
|
Molecular formula |
CaCO3 |
|
CAS |
471-34-1 |
|
H.S. CODE |
2836500000 |
|
Molecular weight |
100.088 |
|
Appearance |
White powder |
|
Package |
25KG Woven bags or fiber drums |
Property：
White powder. Odourless and tasteless. Dew buy air. There is no change, a proportion of 2.710. Melting point 1339 &; ordm C. Almost insoluble in water in contain or ammonium trioxide iron water dissolves, insoluble in alcohol. Encounter dilute acetic acid, rare hydrochloric acid, nitric acid happen bubble boiling, thin and dissolve. Heating is decomposed into CaO (CaO) and carbon dioxide (CO2).
Application:
According to the different crushing fineness, industry is divided into four different specifications: solo, sf, three fly, fly, respectively applied for every four industry.
Test standard：GB 1898-2007
|
Test items |
Specification |
|
FCC grade |
|
|
Appearance |
White powder |
|
Assay |
99.0~100.5% |
|
Loss on dry |
Conform |
|
HCl insoluble |
≤0.2% |
|
Free alkali |
≤8.5 |
|
Magnesium and alkaline metal |
≤0.0001% |
|
Barium |
≤0.0005% |
|
Arsenic |
Conform |
|
Fluoride |
≤0.40% |
|
Lead |
≥85 |
|
Mercury |
≤0.0001% |
|
Cadmium |
≤0.0002% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
