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207969

Sigma-Aldrich

Potassium iodide

ReagentPlus®, 99%

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

vapor pressure

1 mmHg ( 745 °C)

Quality Level

product line

ReagentPlus®

assay

99%

form

powder or crystals

pH

~6.9 (20 °C, 50 g/L)

mp

681 °C (lit.)

solubility

water: soluble(lit.)

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M

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1 of 4

This Item
3031574642803124
Potassium iodide ReagentPlus®, 99%

207969

Potassium iodide

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

30315

Potassium iodide

-
Potassium iodide anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

746428

Potassium iodide

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

03124

Potassium iodide

Essential Grade
assay

99%

assay

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

assay

≥99%

assay

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

solubility

water: soluble(lit.)

solubility

-

solubility

-

solubility

-

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

-

mp

681 °C (lit.)

mp

681 °C (lit.)

mp

681 °C (lit.)

mp

681 °C (lit.)

pH

~6.9 (20 °C, 50 g/L)

pH

6.0-8.0 (20 °C, 5%)

pH

6.0-9.2 (25 °C, 5%)

pH

~6.9 (20 °C, 50 g/L)

General description

Potassium iodide (KI) is an inorganic potassium salt. KI is a colorless solid having cubic crystal system. It has been prepared by reacting hydroiodic acid with potassium hydroxide or potassium carbonate. Alumina loaded with potassium iodide has been employed as catalyst for the preparation of biodiesel by the transesterification reaction of soybean oil with methanol.

Application

Potassium iodide (KI) may be used in the preparation of standard iodide stock solution for the size exclusion chromatographic method for the estimation of iodide. It may be used in the spectrophotometric determination of advanced oxidation protein products (AOPP) in plasma.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

STOT RE 1 Oral

target_organs

Thyroid

Storage Class

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Potassium iodate

Eagleson M.
Concise Encyclopedia Chemistry, 889-889 (1994)
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
Pietro Santulli et al.
Human reproduction (Oxford, England), 30(1), 49-60 (2014-11-08)
Are protein oxidative stress markers [thiols, advanced oxidation protein products (AOPP), protein carbonyls and nitrates/nitrites] in perioperative peritoneal fluid higher in women with histologically proven endometriosis when compared with endometriosis-free controls? Protein oxidative stress markers are significantly increased in peritoneal

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