Potassium chloride

grade

ACS reagent

Quality Level

200

Assay

99.0-100.5%

form

powder

impurities

≤0.005% Insoluble matter

pH

5.4-8.6 (25 °C, 5% in solution)

mp

770 °C (lit.)

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br^–): ≤0.01%
chlorate, nitrate (as NO₃^–): ≤0.003%
iodide (I^–): ≤0.002%
phosphate (PO₄^3-): ≤5 ppm
sulfate (SO₄^2-): ≤0.001%

cation traces

Ba:, passes test (limit about 0.001%)
Ca: ≤0.002%
Fe: ≤3 ppm
Mg: ≤0.001%
Na: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES )

SMILES string

[Cl-].[K+]

InChI

1S/ClH.K/h1H;/q;+1/p-1