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molecular formula: cacl2·2h2o
molecular weight: 147.014
cas no: 10035-04-8
properties: white flake, particle, lump or powder. relative density is 1.85. easily soluble in water and ethyl alcohol.
uses: as analytical reagent, industrial refrigerant, motor vehicle antifreeze fluid, snow-dissolved agent, fire extinguishing agent and adhesive.
standard: maximum assay of impurities is in %
| specification/item |
analytically pure-ar
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chemically pure-cp
|
high pure
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food grade
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assay(cacl2)
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≥74
(cacl2)
|
≥74
(cacl2)
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97.0~103.0
(cacl2·2h2o)
|
99.0~105
(cacl2·2h2o)
|
|
alkalinity (calculated as cacoh)
|
≤0.02
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≤0.04
|
－
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－
|
|
iron (fe)
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≤0.001
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≤0.002
|
－
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≤0.002
|
|
magnesium and alkali metal(as sulfate)
|
≤0.3
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≤0.6
|
－
|
4
|
|
insoluble matter and ammonia precipitate
|
≤0.015
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≤0.03
|
－
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≤0.1
|
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sulfate (caso4)
|
－
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－
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≤0.02
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－
|
|
arsenic (as)
|
－
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－
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≤0.000 2
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≤0.000 3
|
|
heavy metal (pb)
|
－
|
－
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≤0.001
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≤0.002
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fluoride (f)
|
－
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－
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－
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≤0.004
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lead (pb)
|
－
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－
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－
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≤0.001
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packing: woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.
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