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60399

Sigma-Aldrich

Potassium iodide

BioUltra, ≥99.5% (AT)

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

vapor pressure

1 mmHg ( 745 °C)

Quality Level

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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1 of 4

This Item
P2963P816660238
vibrant-m

60399

Potassium iodide

Premium Grade
vibrant-m

P2963

Potassium iodide

Premium Grade
vibrant-m

P8166

Potassium iodide

-
vibrant-m

60238

Potassium fluoride

Premium Grade
solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 133 mg/mL at , clear, colorless

solubility

H2O: 1 M at 20 °C, clear, colorless

form

solid

form

powder

form

powder

form

solid

assay

≥99.5% (AT)

assay

≥99.0%

assay

-

assay

≥99.5% (F)

pH

6.0-9.0 (25 °C, 1 M in H2O)

pH

-

pH

-

pH

7.0-8.5 (25 °C, 1 M in H2O)

anion traces

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

anion traces

chloride (Cl-): ≤0.01%, sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

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

Biochem/physiol Actions

Potassium iodide (KI) consists of halogen iodine and the alkali metal potassium. It is used in the form of iodized salt to treat endemic goiter. KI is also used to treat hyperthyroidism and radiation protection of the thyroid gland. KI is useful for the preoperative preparation of patients with Grave′s disease. It also finds its use in treating dermatological conditions like cutaneous sporotrichosis and various inflammatory dermatoses. KI is commonly used as an expectorant. It inhibits the capacity of neutrophils to produce e toxic oxygen intermediates hydrogen peroxide and hydroxyl radicals in vitro.

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

ppe

Eyeshields, Gloves, type N95 (US)


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H.O. Smith
Methods in Enzymology, 65, 375-375 (1980)
Isolation of large molecular weight DNA from agarose gels for further digestion by restriction enzymes.
N Blin et al.
FEBS letters, 53(1), 84-86 (1975-04-15)
Higson, S.P.J. et al.
Electroanalysis, 6, 431-431 (1994)
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

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