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potassium chloride

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

chemically pure-cp

high pure

assay (kcl) /%

≥99.5

≥99.5

≥99.5

ph(50g/l solution,25℃)

5.0~8.0

5.0~8.0

clarity test

qualified

qualified

water insoluble matter

≤0.005

≤0.02

iodide (i)

≤0.002

≤0.01

bromide(br)

≤0.02

≤0.05

sulfate (so4)

≤0.002

≤0.005

≤0.01

total nitrogen (n)

≤0.001

≤0.001

phosphate (po4)

≤0.0005

≤0.002

sodium (na)

≤0.02

≤0.1

magnesium (mg)

≤0.001

≤0.002

calcium (ca)

≤0.003

≤0.01

iron (fe)

≤0.0003

≤0.0005

≤0.0005

barium (ba)

≤0.001

≤0.001

heavy metal (pb)

≤0.0005

≤0.001

≤0.0005

drying loss

1.0

arsenic (as)

≤0.0001

packing, storage and transportation: woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.

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