Potassium chloride
CAS 7447-40-7ClK74.55 g/mol
Potassium chloride is a metal chloride salt with a K(+) counterion. It has a role as a NMR chemical shift reference compound and a fertilizer. It is an inorganic potassium salt, a potassium salt and an inorganic chloride.
IUPAC: potassium chloride
PubChem
Physical & Chemical Properties
| Melting Point | 1418 °F (NTP, 1992) |
| Boiling Point | Sublimes at 2732 °F (NTP, 1992) |
| Density | 1.984 (NTP, 1992) - Denser than water; will sink |
| Solubility | greater than 100 mg/mL at 68 °F (NTP, 1992) |
| pH | pH: about 7 |
| Appearance | Potassium chloride appears as white colorless cubic crystals. Strong saline taste. (NTP, 1992) |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
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HS Code(s): 3104
Data: UN Comtrade
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