Product Name
Potassium chloride
Category
Metal & Ceramic Materials
Description
The chemical compound potassium chloride (KCl) is a metal halide salt composed of potassium and chloride. It is odorless and has a white or colorless vitreous crystal appearance. The solid dissolves readily in water and its solutions have a salt-like taste. KCl is used in medicine, scientific applications, food processing, and used to cause cardiac arrest as the third drug in the “three drug cocktail” for executions by lethal injection. It occurs naturally as the mineral sylvite and in combination with sodium chloride as sylvinite.
IUPAC Name
Potassium;chloride
Canonical SMILES
[Cl-].[K+]
InChI
InChI=1S/ClH.K/h1H;/q;+1/p-1
InChI Key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Density
1.98 g/mL at 25 °C (lit.)
Solubility
Freely soluble in water, insoluble in ethanol
Color/Form
White crystals or crystalline powder;Colorless crystals;Colorless, elongated, prismatic, or cubical crystals or as a white granular powder
Covalently-Bonded Unit Count
2
EC Number
231-211-8;231-211-8
Monoisotopic Mass
73.9325592
Other Experimental
Nonhygroscopic;Cubic crystals. Natural sylvite is opalescent or milky white. Sylvite is often colored red by hematite. Mohs Hardness = 2; Index of refraction = 1.4903; Density: 1.99 g/cu cm /Sylvite/;Density of saturated aq soln at 15 °C: 1.172;Specific heat = 693.7 J/kg-K; Heat of fusion = 337.7 kJ/mol; Enthalpy of formation = -436.7 kJ/mol; Entropy (S) = 82.55 J/mol-K; Dielectric constant (at 1X10+6 Hz) = 4.68; Thermal coeff of expansion (15-25 °C) = 33.7X10-6/K; Boiling point of saturated solution at 1.013 bar = 108.6 °C
Refractive Index
n20/D 1.334
Stability
Stable. Incompatible with strong oxidizing agents, strong acids. Protect from moisture. Hygroscopic.
Topological Polar Surface Area
0 Ų
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