C

Cesium chloride

IUPAC: cesium chloride

CsCl Salts CAS 7647-17-8
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Quick Reference
Formula / NotationCsCl
CAS Number7647-17-8
Molecular Weight168.36
Melting Point646 °C
Boiling Point1290 °C (sublimes)
Density3.988
SolubilitySoluble in ethanol
AppearanceColorless crystals. [HSDB]
Also Known As7647-17-8; Caesium chloride; Cesium monochloride; CsCl; Cesium chloride (CsCl); Tricesium trichloride; GNR9HML8BA; DTXSID3040435; NSC-15198; CHEBI:63039
CategorySalts

What is Cesium chloride?

Caesium chloride is the inorganic chloride salt of caesium; each caesium ion is coordinated by eight chlorine ions. It has a role as a vasoconstrictor agent and a phase-transfer catalyst. It is an inorganic caesium salt and an inorganic chloride.

Formula & Notation

CsCl

IUPAC Name: cesium chloride

Other Names / Synonyms: 7647-17-8; Caesium chloride; Cesium monochloride; CsCl; Cesium chloride (CsCl); Tricesium trichloride; GNR9HML8BA; DTXSID3040435; NSC-15198; CHEBI:63039

Properties & Characteristics

Appearance: Colorless crystals. [HSDB]. Molecular formula: ClCs. Molecular weight: 168.36 g/mol. Boiling point: 1290 °C (sublimes). Melting point: 646 °C. Density: 3.988. Solubility: Soluble in ethanol.

Physical Data

PropertyValue
Melting Point646 °C
Boiling Point1290 °C (sublimes)
Density3.988
Molecular Weight168.36
SolubilitySoluble in ethanol
AppearanceColorless crystals. [HSDB]

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Cesium chloride
Formula CsCl
CAS Number 7647-17-8
Molecular Weight 168.36
Category Salts
Synonyms 7647-17-8; Caesium chloride; Cesium monochloride; CsCl; Cesium chloride (CsCl); Tricesium trichloride; GNR9HML8BA; DTXSID3040435; NSC-15198; CHEBI:63039

Frequently Asked Questions

Caesium chloride is the inorganic chloride salt of caesium; each caesium ion is coordinated by eight chlorine ions. It has a role as a vasoconstrictor agent and a phase-transfer catalyst. It is an inorganic caesium salt and an inorganic chloride.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.