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Product name
Potassium carbonate
Specification
Reagent grade
Molecular formula
K2CO3
CAS
584-08-7
H.S. CODE
2836400000
Molecular weight
138.21
Appearance
White granule
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/T1397-1995
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Test items |
Specification |
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AR grade |
CP grade |
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Appearance |
White granule |
White granule |
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Assay |
≥99.5% |
≥99.0% |
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Appearance of solution |
Conform |
Conform |
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Water insoluble |
≤0.005% |
≤0.03% |
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Loss on dry |
≤1.0% |
≤2.0% |
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Chloride |
≤0.003% |
≤0.01% |
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Sulfur compounds |
≤0.003% |
≤0.01% |
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Total nitrogen |
≤0.001% |
≤0.01% |
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Phosphate and silicate |
≤0.005% |
≤0.02% |
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Sodium |
≤0.05% |
≤0.1% |
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Magnesium |
≤0.002% |
≤0.005% |
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Calcium |
≤0.002% |
≤0.02% |
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Iron |
≤0.0005% |
≤0.002% |
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Copper |
≤0.0005% |
≤0.001% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
