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Langfang Tianke Biotechnology Co., Ltd.
Langfang Tianke Biotechnology
Professional production base of general chemical reagent and pharmaceutical accessories
Hotline:+86-15076659665
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Calcium carbonate

Calcium carbonate

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

Chemical pure-CP

Assay

≥99.0

≥98.0

Clarity test

Qualified

Qualified

Insoluble matter in hydrochloric acid

≤0.01

≤0.03

Alkalinity

≤0.25

≤0.25

Chloride (Cl)

≤0.002

≤0.01

Sulfate (SO4)

≤0.01

≤0.05

Sodium (Na)

≤0.1

≤0.3

Potassium (K)

≤0.005

≤0.05

Magnesium (Mg)

≤0.05

≤0.20

Strontium (Sr)

≤0.05

≤0.10

Barium (Ba)

≤0.02

≤0.04

Iron (Fe)

≤0.001

≤0.005

Heavy metal (Pb)

≤0.001

≤0.005

Packing: Woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.

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Langfang Tianke Biotechnology Co., Ltd.
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Hebei, China
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