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204102

Sigma-Aldrich

Potassium iodide

≥99.99% trace metals basis

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Synonym(s):
Knollide, Potassium monoiodide
Linear Formula:
KI
CAS Number:
Molecular Weight:
166.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor pressure

1 mmHg ( 745 °C)

Assay

≥99.99% trace metals basis

form

crystals and lumps

impurities

≤100.0 ppm Trace Metal Analysis

mp

681 °C (lit.)

SMILES string

[K+].[I-]

InChI

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

InChI key

NLKNQRATVPKPDG-UHFFFAOYSA-M

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This Item
22194560399793582
Potassium iodide ≥99.99% trace metals basis

Sigma-Aldrich

204102

Potassium iodide

-
Potassium iodide ACS reagent, ≥99.0%

Sigma-Aldrich

221945

Potassium iodide

Essential Grade
Potassium iodide BioUltra, ≥99.5% (AT)

Sigma-Aldrich

60399

Potassium iodide

Premium Grade
Potassium iodide anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, 99%

Sigma-Aldrich

793582

Potassium iodide

-
assay

≥99.99% trace metals basis

assay

≥99.0%

assay

≥99.5% (AT)

assay

99%

form

crystals and lumps

form

crystals

form

solid

form

powder or crystals

impurities

≤100.0 ppm Trace Metal Analysis

impurities

≤0.001% N compounds, ≤0.005% insolubles

impurities

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

impurities

-

mp

681 °C (lit.)

mp

681 °C (lit.)

mp

681 °C (lit.)

mp

681 °C (lit.)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

General description

Potassium iodide is widely used as an additive to fabricate perovskite solar cells and light-emitting diodes, to enhance their stability and performance. The excess I from KI fill in the Ivacancies and suppress potential pathways for ion migration. The K+ cations can bond with undercoordinated halides or passivate negatively charged trap states at the grain surface, which enhances the performance of the device. It can also be used as a catalyst in various reactions such as the synthesis of biodiesel and cyclic carbonates with five-membered rings.

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

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
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S Maria O'Kane et al.
Nutrients, 10(3) (2018-03-02)
Cow's milk is the most important dietary source of iodine in the UK and Ireland, and also contributes to dietary selenium intakes. The aim of this study was to investigate the effect of season, milk fat class (whole; semi-skimmed; skimmed)
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
Zhi-Qi Lao et al.
Organic & biomolecular chemistry, 10(39), 7869-7871 (2012-09-06)
We have developed a new KI-catalyzed method for the imidation of an sp(3) C-H bond adjacent to an amide nitrogen atom by using TBHP (tert-butyl hydroperoxide, 70% aqueous solution) as the oxidant. This novel procedure tolerated air and moisture and
S C Clement et al.
Pediatric blood & cancer, 60(11), 1833-1838 (2013-07-09)
Thyroid dysfunction has been reported in up to 52% of patients 1.4 years after treatment with (131) I-Metaiodobenzylguanidine (MIBG) in children with neuroblastoma (NBL), despite the use of potassium-iodide (KI). Our aim was to investigate if the incidence and severity
J B Sterling et al.
Journal of the American Academy of Dermatology, 43(4), 691-697 (2000-09-27)
Potassium iodide (KI) is a useful drug in the dermatologic armamentarium. It is successfully used for inflammatory dermatoses, most notably erythema nodosum, subacute nodular migratory panniculitis, nodular vasculitis, erythema multiforme, and Sweet's syndrome. KI is also successfully used for cutaneous

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