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31248

Sigma-Aldrich

Potassium chloride

puriss. p.a., reag. ISO, reag. Ph. Eur., 99.5-100.5%

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About This Item

Linear Formula:
KCl
CAS Number:
Molecular Weight:
74.55
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21
form:
crystalline powder
Pricing and availability is not currently available.

Agency

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

grade

puriss. p.a.

Assay

99.5-100.5%

form

crystalline powder

impurities

acidic or alkalic reac. substances, complies
≤0.0005% heavy metals (as Pb)
≤0.001% total nitrogen (N)
≤0.003% free acid (as HCl)
≤0.003% free alkali (as KOH)
≤0.005% water insolubles

loss

≤0.2% loss on drying, 130 °C

pH

5-8 (20 °C, 5%)

mp

770 °C (lit.)

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤100 mg/kg
iodide (I-): ≤20 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Al: ≤1 mg/kg
Ba: ≤10 mg/kg
Ca: ≤10 mg/kg
Fe: ≤2 mg/kg
Mg: ≤5 mg/kg
Na: ≤200 mg/kg

suitability

corresponds for appearance of solution

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

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Application

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Packaging

This product is also available in glass bottles.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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H Fukada et al.
Proteins, 33(2), 159-166 (1998-10-21)
Enthalpy and heat capacity changes for the deprotonation of 18 buffers were calorimetrically determined in 0.1 M potassium chloride at temperatures ranging from 5 to 45 degrees C. The values of the dissociation constant were also determined by means of
The use of potassium chloride and tris (hydroxymethyl) aminomethane as standard substances for solution calorimetry.
Rychly R and Pekarek V.
The Journal of Chemical Thermodynamics, 9(4), 391-396 (1977)
Masatoshi Takagaki et al.
Experimental neurology, 252, 12-17 (2013-11-20)
Sedatives in the neurointensive care unit can strongly influence patients' risks of developing secondary brain damage. In particular, isoflurane, a volatile anesthetic, has been recently re-introduced to the neurointensive care unit, and first clinical studies suggest beneficial effects due to
Hanne Sørup Tastesen et al.
Amino acids, 46(7), 1659-1671 (2014-03-25)
High-protein diets induce alterations in metabolism that may prevent diet-induced obesity. However, little is known as to whether different protein sources consumed at normal levels may affect diet-induced obesity and associated co-morbidities. We fed obesity-prone male C57BL/6J mice high-fat, high-sucrose
Yuanyuan Qu et al.
Nucleic acids research, 41(10), 5263-5272 (2013-04-13)
Bacterial nucleoid-associated proteins, such as H-NS-like proteins in Enterobacteriaceae, are abundant DNA-binding proteins that function in chromosomal DNA organization and gene transcription regulation. The Mycobacterium tuberculosis Lsr2 protein has been proposed to be the first identified H-NS analogue in Gram-positive

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