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Chemical substance record

Potassium chloride

7447-40-7Cl.K74.551 g/mol
MineralChEBI source record

A metal chloride salt with a K(+) counterion. — ChEBI

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Identity & molecular properties

Source-linked values
CAS number7447-40-7ChEBI ↗
Molecular formulaCl.KChEBI ↗
Molar mass74.551 g/molChEBI ↗
Monoisotopic mass73.93256 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:32588ChEBI ↗

Cross-source molecular data

PubChem
Molar mass74.55 g/molPubChem ↗
Exact mass73.9325592 DaPubChem ↗

PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.

Names & structural identifiers

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potassium chloride
potassium chloride
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
[Cl-].[K+]
InChI=1S/ClH.K/h1H;/q;+1/p-1

Names & synonyms

Kaon-Cl 10Klor-conKlotrix

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

NMR chemical shift reference compoundfertilizercardiovascular drugantineoplastic agentantihypertensive agentanti-arrhythmia druglaxative

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.0134136 mol

Uses 74.551 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
K
Potassium · 1 atom
52.45%
Cl
Chlorine · 1 atom
47.55%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

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Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:32588

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

NCBI PubChem · CID 4873 · retrieved 2026-09-27

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.