Merck
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03124

Sigma-Aldrich

Potassium iodide

puriss., meets analytical specification of Ph. Eur. BP, USP, 99.0-100.5% (calc. to the dried substance)

Linear Formula:
KI
CAS Number:
Molecular Weight:
166.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor pressure

1 mmHg ( 745 °C)

grade

puriss.

assay

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

form

solid

quality

meets analytical specification of Ph. Eur. BP, USP

impurities

ammonium, in accordance
organic volatile impurities, complies (GC)
residual solvents, 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 (20 °C, 50 g/L)

mp

681 °C (lit.)

anion traces

iodate (IO3-): in accordance
nitrate (NO3-): in accordance
nitrite (NO2-): in accordance
sulfate (SO42-): ≤100 mg/kg

cation traces

Ba:, in accordance
Fe: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M

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General description

Potassium iodide (KI) is an inorganic potassium salt. Alumina loaded with potassium iodide has been employed as catalyst for the transesterification of soybean oil with methanol. Influence of KI on the in vitro generation of polymorphonudear leukocyte (PMN)-derived oxygen intermediates has been investigated.

Application

Potassium iodide (KI) was used in the preparation of standard iodide stock solution for the determination of iodide by size exclusion chromatography. It may be used in the spectrophotometric determination of advanced oxidation protein products (AOPP).

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

STOT RE 1 Oral

Target Organs

Thyroid

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Certificate of Analysis

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Certificate of Origin

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