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Iodure de potassium

Name: Iodure de potassium
Brand: SIGALD

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

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A propos de cet article

Formule linéaire :

Numéro CAS:

7681-11-0

Poids moléculaire :

166.00

NACRES:

NA.21

PubChem Substance ID:

329753460

UNSPSC Code:

12352302

EC Number:

231-659-4

MDL number:

MFCD00011405

Assay:

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

Form:

solid

Solubility:

water: complete (ca.1,430 g/l at 25 °C (77 °F))

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Propriétés

Quality Level

200

agency

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

vapor pressure

1 mmHg ( 745 °C)

description

REDUCING SUBSTANCES complying

grade

puriss. p.a.

assay

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

form

solid

impurities

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

loss

≤0.5% loss on drying, 105 °C

pH

6.0-8.0 (20 °C, 5%)

mp

681 °C (lit.)

solubility

water: complete (ca.1,430 g/l at 25 °C (77 °F))

anion traces

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

cation traces

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

Description

General description

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.

Application

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).

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signalword

Danger

target_organs

Thyroid

Classe de stockage

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

flash_point_f

Not applicable

flash_point_c

Not applicable

Hazard Classifications

Eye Irrit. 2 - Repr. 1B - STOT RE 2

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A Fast and Simple Method for the Determination of TBA in 18F-Labeled Radiopharmaceuticals.

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

Effects of potassium iodide, colchicine and dapsone on the generation of polymorphonuclear leukocyte-derived oxygen intermediates.

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

Determination of iodide in seawater and urine by size exclusion chromatography with iodine-starch complex.

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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