vapor pressure

1 mmHg ( 745 °C)

grade

puriss.

Assay

99.0-100.5% (calc. to the dried substance)

form

crystalline

quality

meets analytical specification of Ph. Eur. BP, USP

impurities

ammonium, in accordance
organic volatile impurities, complies (GC)
residual solvents, in accordance
thiosulfate (S₂O₃), in accordance
≤0.001% heavy metals (as Pb)
≤0.01% thiosulfate (S₂O₃)
≤0.02% free alkali (as KOH)

loss

≤0.5% loss on drying, 105 °C

pH

6-9 (25 °C, 166 g/L)

mp

681 °C (lit.)

anion traces

iodate (IO₃^-): in accordance
nitrate (NO₃^-): in accordance
nitrite (NO₂^-): in accordance
sulfate (SO₄^2-): ≤0.01%

cation traces

Ba:, in accordance
Fe: ≤0.001%

suitability

complies for appearance of solution

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M