碘化钾，Potassium iodide；puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99.0%

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

质量水平

200

蒸汽压

1 mmHg ( 745 °C)

描述

REDUCING SUBSTANCES complying

等级

puriss. p.a.

测定

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

形式

solid

杂质

≤0.0005% heavy metals (as Pb)
≤0.001% total nitrogen (N)
≤0.005% thiosulfate (S₂O₃)
≤0.02% free alkali (as KOH)

缺失

≤0.5% loss on drying, 105 °C

pH值（酸碱度）

6.0-8.0 (20 °C, 5%)

mp

681 °C (lit.)

痕量阴离子

bromide, chloride (as Cl^-): ≤100 mg/kg
iodate (IO₃^-): ≤2 mg/kg
phosphate (PO₄^3-): ≤10 mg/kg
sulfate (SO₄^2-): ≤10 mg/kg

痕量阳离子

As: ≤0.1 mg/kg
Ba: ≤20 mg/kg
Ca: ≤10 mg/kg
Fe: ≤3 mg/kg
Mg: ≤10 mg/kg
Na: ≤300 mg/kg

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M