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langfang tianke biotechnology
professional production base of general chemical reagent and pharmaceutical accessories
hotline: 86-15076659665
products
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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.
add: sanghang industrial park, dacheng county,
hebei, china
tel: 86-15076659665 manager ma
fax: 86-316-5569332 
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