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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:
7447-40-7
Molecular Weight:
74.55
EC Number:
231-211-8
MDL number:
MFCD00011360
UNSPSC Code:
12352302
PubChem Substance ID:
329753698
NACRES:
NA.21

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Potassium chloride powder, BioReagent, suitable for cell culture, suitable for insect cell culture, ≥99.0%

Sigma-Aldrich

P5405

Potassium chloride

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)
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
Garrett A Kaas et al.
Neuron, 79(6), 1086-1093 (2013-09-21)
Dynamic changes in 5-methylcytosine (5mC) have been implicated in the regulation of gene expression critical for consolidation of memory. However, little is known about how these changes in 5mC are regulated in the adult brain. The enzyme methylcytosine dioxygenase TET1
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
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