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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
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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/T 15897—1995
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Test items |
Specification |
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AR grade |
CP grade |
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Appearance |
White powder |
White powder |
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Assay |
≥99.0% |
≥98.0% |
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Appearance of solution |
Conform |
Conform |
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HCL insoluble |
≤0.01% |
≤0.03% |
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Alkalinity |
≤0.25% |
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Chloride |
≤0.002% |
≤0.01% |
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Sulfate |
≤0.01% |
≤0.05% |
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Sodium |
≤0.1% |
≤0.3% |
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Potassium |
≤0.005% |
≤0.05% |
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Magnesium |
≤0.05% |
≤0.20% |
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Strontium |
≤0.05% |
≤0.10% |
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Barium |
≤0.02% |
≤0.04% |
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Iron |
≤0.001% |
≤0.005% |
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Heavy metals |
≤0.001% |
≤0.005% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
