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Merck

30315

Sigma-Aldrich

Yoduro de potasio

puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99.0%

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About This Item

Fórmula lineal:
KI
Número de CAS:
Peso molecular:
166.00
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
NACRES:
NA.21
Ensayo:
≥99.0%
99.0-100.5% (calc. to the dried substance)
Formulario:
solid

Agency

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

Nivel de calidad

presión de vapor

1 mmHg ( 745 °C)

descripción

REDUCING SUBSTANCES complying

grado

puriss. p.a.

Ensayo

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

Formulario

solid

impurezas

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

pérdida

≤0.5% loss on drying, 105 °C

pH

6.0-8.0 (20 °C, 5%)

mp

681 °C (lit.)

trazas de anión

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

trazas de catión

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

cadena SMILES

[K+].[I-]

InChI

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

Clave InChI

NLKNQRATVPKPDG-UHFFFAOYSA-M

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Descripción general

Potassium iodide (KI) is a chemical compound that can be used as an iodide ion source for nucleophilic displacement reactions. During the electrochemical oxidation of aldehydes, it acts as a mediator. In the presence of an acid, it can cleave some ethers. KI can iodinate aromatic and organothallium compounds in the presence of an oxidizing agent. Additionally, it can form symmetrical thiosulfonic S-esters by reacting with sulfonyl chlorides.

Aplicación

Potassium iodide is used as:
  • An iodine source in the synthesis of 1-iodoalkynes and iodophenols from alkynes and phenols using tert-butyl hydroperoxide (TBHP) as oxidant.
  • A catalyst in the synthesis of sulfonated oxindoles by arylsulfonylation of activated alkenes using sulfonylhydrazides as sulfonyl precursor, and water as solvent.
  • An oxidative degradation inhibitor to reduces oxidative degradation of monoethanolamine (MEA).

Pictogramas

Health hazard

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

STOT RE 1 Oral

Órganos de actuación

Thyroid

Código de clase de almacenamiento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Nils Erik Halvorsen et al.
Pharmaceuticals (Basel, Switzerland), 13(2) (2020-02-15)
A simple color spot test for determining the presence of residual tetrabutylammonium (TBA) in various 18F-radiopharmaceuticals is described. The test can be performed in less than five minutes. Iodoplatinate-saturated TLC plates are initially spotted with the 18F-radiopharmaceutical to be tested
Y Miyachi et al.
The British journal of dermatology, 107(2), 209-214 (1982-08-01)
The effects of potassium iodide, colchicine and dapsone on the in vitro generation of polymorphonuclear leukocyte (PMN)-derived oxygen intermediates were investigated. These three drugs have beneficial effects on those conditions in which PMNs play an important pathogenetic role. Three oxygen
V Witko-Sarsat et al.
Journal of immunology (Baltimore, Md. : 1950), 161(5), 2524-2532 (1998-09-02)
We previously demonstrated the presence of advanced oxidation protein products (AOPP), a novel marker of oxidative stress in the plasma of uremic patients receiving maintenance dialysis. The present study in a cohort of 162 uremic patients showed that plasma concentrations
Alumina-supported potassium iodide as a heterogeneous catalyst for biodiesel production from soybean oil.
Xie W and Li H.
J. Mol. Catal. A: Chem., 255(1), 1-9 (2006)
H B Li et al.
Journal of chromatography. A, 918(2), 335-339 (2001-06-16)
A novel method for the determination of iodide by size exclusion chromatography was established. The method was simple and highly sensitive with good precision. Iodide was converted to iodine, then sequestered with starch, and separated from the matrix using a

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