Functional Roles
Industries Served
Physical Properties
physical_description
Pellets or Large Crystals; Pellets or Large Crystals, Liquid; Dry Powder, Pellets or Large Crystals; Liquid, Other Solid; Other Solid; Dry Powder; Liquid
color/form
Colorless, elongated, prismatic, or cubical crystals or as a white granular powder
odor
Odorless
taste
Strong saline taste
boiling_point
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 u00b0C) = 33.7X10-6/K; Boiling point of saturated solution at 1.013 bar = 108.6 u00b0C
melting_point
1418 u00b0F (NTP, 1992)
solubility
1 g dissolves in 2.8 mL water, 1.8 mL boiling water ... /addtion of/ hydrochloric acid, or sodium chloride, or magnesium chloride, diminishes its solubility in water
density
1.984 (NTP, 1992) - Denser than water; will sink
ph
pH: about 7
other_experimental_properties
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/
Chemical Identity
| CAS Number | 7447-40-7 |
| IUPAC Name | potassium chloride |
| InChI Key | WCUXLLCKKVVCTQ-UHFFFAOYSA-M |
| PubChem CID | 4873 |
| INCI Name | POTASSIUM CHLORIDE |
Synonyms & Trade Names
Full Description
Potassium Chloride (KCl) is an inorganic salt compound that functions as a pH adjustment agent in industrial applications. This crystalline solid, with a density of 1.984 g/cm³ and high water solubility (1g per 2.8 mL water), is primarily utilized in agriculture for pH control processes. The compound has a molecular weight of 74.55 g/mol and maintains thermal stability with a melting point of 1418°F.