Merck
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60399

Sigma-Aldrich

Potassium iodide

BioUltra, ≥99.5% (AT)

Linear Formula:
KI
CAS Number:
Molecular Weight:
166.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

vapor pressure

1 mmHg ( 745 °C)

product line

BioUltra

assay

≥99.5% (AT)

form

solid

impurities

insoluble matter, passes filter test
≤0.001% total nitrogen (N)

loss

≤0.5% loss on drying, 110 °C

pH

6.0-9.0 (25 °C, 1 M in H2O)

mp

681 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

bromide, chloride (as Cl-): ≤100 mg/kg
iodate (IO3-): ≤2 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤300 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 273 nm in H2O at 1 M

application(s)

vitamins, nutraceuticals, and natural products

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M

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Related Categories

Application

Potassium iodide has been used:
  • to inhibit active oxygen as a component of processes such as DNA damage
  • as a chaotropic agent which, in high concentrations can dissolve a gel matrix
  • in the recovery of DNA from gel slices by gel dissolution

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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