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Molecular formula: CaCO3
Molecular weight: 100.09
CAS NO: 471-34-1
Properties: White powder or colorless crystal. Relative density is 2.930. It breaks up into calcium chloride and carbon dioxide at 825℃. Insoluble in water, soluble in acids.
Uses: As analytical reagent and standard reagent.
Standard: The maximum content of impurities is in percentage content
| Standard/item |
Analytical pure-AR
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Chemical pure-CP
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Assay
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≥99.0
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≥98.0
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Clarity test
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Qualified
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Qualified
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Insoluble matter in hydrochloric acid
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≤0.01
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≤0.03
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Alkalinity
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≤0.25
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≤0.25
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Chloride (Cl)
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≤0.002
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≤0.01
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Sulfate (SO4)
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≤0.01
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≤0.05
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Sodium (Na)
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≤0.1
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≤0.3
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Potassium (K)
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≤0.005
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≤0.05
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Magnesium (Mg)
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≤0.05
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≤0.20
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Strontium (Sr)
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≤0.05
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≤0.10
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Barium (Ba)
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≤0.02
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≤0.04
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Iron (Fe)
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≤0.001
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≤0.005
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Heavy metal (Pb)
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≤0.001
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≤0.005
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Packing: Woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.
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