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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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－
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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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－
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1.0
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Arsenic (As)
|
－
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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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