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P3911

Sigma-Aldrich

Potassium chloride

ACS reagent, 99.0-100.5%

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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:
329820194
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

99.0-100.5%

form

powder

impurities

≤0.005% Insoluble matter

pH

5.4-8.6 (25 °C, 5% in solution)

mp

770 °C (lit.)

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤0.01%
chlorate, nitrate (as NO3-): ≤0.003%
iodide (I-): ≤0.002%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.001%

cation traces

Ba:, passes test (limit about 0.001%)
Ca: ≤0.002%
Fe: ≤3 ppm
Mg: ≤0.001%
Na: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES )

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

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General description

Potassium chloride is an inorganic salt commonly used in fertilizer industry. Its generation via chlorination of microcline has been reported. The intrinsic and extrinsic conductivity of KCl crystals have been measured. The impact of KCl on the activity of mitochondrial membrane, cristae and matrix proteins has been investigated. It facilitates the preparation of isoxazolines in aqueous medium.

Application

Potassium chloride has been used in the preparation of the following:
  • Amorphous calcium phosphate (ACP) deposition solution, used for ACP coating on Ti coupons.
  • Modified methylene blue (MB) solution, utilized in the MB two-phase titration method.
  • 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES)-containing artificial cerebrospinal fluid (ACSF) solutions.
  • Artificial sea water.
May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Other Notes

Go to Redi-Dri™ Product Listing 746436

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

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 99.999% trace metals basis

Sigma-Aldrich

409316

Potassium chloride

Electrical Conductivity of Potassium Chloride.
Fuller RG, et al.
Physical Review Letters, 20(13), 662-662 (1968)
Stability of stearic acid monolayers on Artificial Sea Water.
Brzozowska AM, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 407, 38-48 (2012)
Comparison of titanium soaked in 5M NaOH or 5M KOH solutions.
Kim C, et al.
Materials Science and Engineering, C, 33(1), 327-339 (2013)
An environmentally benign synthesis of isoxazolines and isoxazoles mediated by potassium chloride in water.
Han L, et al.
Tetrahedron Letters, 55(14), 2308-2311 (2014)
Leyu Cui et al.
Analytical chemistry, 86(22), 11055-11061 (2014-11-05)
The methylene blue (MB) two-phase titration method is a rapid and efficient method for determining the concentrations of anionic surfactants. The point at which the aqueous and chloroform phases appear equally blue is called Epton's end point. However, many inorganic
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