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60130

Potassium chloride

puriss. p.a., ≥99.5% (AT)

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About This Item

Linear Formula:
KCl
CAS Number:
7447-40-7
Molecular Weight:
74.55
NACRES:
NA.21
PubChem Substance ID:
329758757
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
MFCD00011360
Assay:
≥99.5% (AT)
Form:
powder or crystals
Solubility:
water: soluble ((355 g/l at 25 °C (77 °F))
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grade

puriss. p.a.

Quality Level

200

assay

≥99.5% (AT)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)

pH

5.5-8.0 (20 °C, 50 mg/mL in H2O)

mp

770 °C (lit.)

solubility

water: soluble ((355 g/l at 25 °C (77 °F))

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤700 mg/kg, iodide (I-): ≤20 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤30 mg/kg

cation traces

Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Mg: ≤10 mg/kg, Mn: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

General description

Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.

Application

Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium salts. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H+) of buffers. From these values temperature dependence of the pH of these buffers was calculated.
May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD9720
BCCG6009
BCCG6007
BCCG7956
BCCG7955

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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)
Jules D P Valentin et al.
Journal of colloid and interface science, 552, 247-257 (2019-05-28)
Many materials used in the medical settings such as catheters and contact lenses as well as most biological tissues are not purely elastic, but rather viscoelastic. While substrate elasticity has been investigated for its influence on bacterial adhesion, the impact
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Global Trade Item Number

SKUGTIN
60130-1KG04061826714805
60130-250G04061832659411
60130-5KG04061832993881