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molecular formula: kcl
molecular weight: 74.55
cas no:7447-40-7
properties: white cubic crystalline powder. relative density is 1.988 and melting point is 771℃. soluble in water, insoluble in diethyl ether and acetone.
uses: as chemical reagent and electrolyte supplement. it can be used in preparing injection and diuretics.
standard: maximum assay of impurities is in %
| specification/item |
analytically pure-ar
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chemically pure-cp
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high pure
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assay (kcl) /%
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≥99.5
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≥99.5
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≥99.5
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ph(50g/l solution,25℃)
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5.0~8.0
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5.0~8.0
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－
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clarity test
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qualified
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qualified
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－
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water insoluble matter
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≤0.005
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≤0.02
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－
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iodide (i)
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≤0.002
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≤0.01
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－
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bromide(br)
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≤0.02
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≤0.05
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－
|
|
sulfate (so4)
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≤0.002
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≤0.005
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≤0.01
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total nitrogen (n)
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≤0.001
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≤0.001
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－
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phosphate (po4)
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≤0.0005
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≤0.002
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－
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sodium (na)
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≤0.02
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≤0.1
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－
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magnesium (mg)
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≤0.001
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≤0.002
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－
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calcium (ca)
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≤0.003
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≤0.01
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－
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iron (fe)
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≤0.0003
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≤0.0005
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≤0.0005
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barium (ba)
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≤0.001
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≤0.001
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－
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heavy metal (pb)
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≤0.0005
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≤0.001
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≤0.0005
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drying loss
|
－
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－
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1.0
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arsenic (as)
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－
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－
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≤0.0001
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packing, storage and transportation: woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.
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