C

Calcium fluoride

IUPAC: calcium difluoride

CaF2 Inorganic Compounds CAS 7789-75-5
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Quick Reference
Formula / NotationCaF2
CAS Number7789-75-5
Molecular Weight78.07
Melting Point1403 °C
Boiling Point2500 °C
Density3.18 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubility0.0015 g/100 ml water at 18 °C; slightly sol in dil mineral acids
AppearanceCalcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999)
Also Known Ascalcium difluoride; 7789-75-5; Calcium difluoride; Fluorspar; Calcarea fluorica; O3B55K4YKI; DTXSID4050487; CHEBI:35437; Calc Fluor; Fluoride, Calcium
CategoryInorganic Compounds

What is Calcium fluoride?

Calcium fluoride (CaF2) is an inorganic compound that appears as Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999). It has a molecular weight of 78.07 g/mol. Its IUPAC name is calcium difluoride. Boiling point: 2500 °C. Melting point: 1403 °C.

Formula & Notation

CaF2

IUPAC Name: calcium difluoride

Other Names / Synonyms: calcium difluoride; 7789-75-5; Calcium difluoride; Fluorspar; Calcarea fluorica; O3B55K4YKI; DTXSID4050487; CHEBI:35437; Calc Fluor; Fluoride, Calcium

Properties & Characteristics

Appearance: Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999). Molecular formula: CaF2. Molecular weight: 78.07 g/mol. Boiling point: 2500 °C. Melting point: 1403 °C. Density: 3.18 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: 0.0015 g/100 ml water at 18 °C; slightly sol in dil mineral acids.

Physical Data

PropertyValue
Melting Point1403 °C
Boiling Point2500 °C
Density3.18 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight78.07
Solubility0.0015 g/100 ml water at 18 °C; slightly sol in dil mineral acids
AppearanceCalcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999)

Uses & Applications

Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.

Safety Information

May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.

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

Key Facts

Term Calcium fluoride
Formula CaF2
CAS Number 7789-75-5
Molecular Weight 78.07
Synonyms calcium difluoride; 7789-75-5; Calcium difluoride; Fluorspar; Calcarea fluorica; O3B55K4YKI; DTXSID4050487; CHEBI:35437; Calc Fluor; Fluoride, Calcium

Frequently Asked Questions

Calcium fluoride (CaF2) is an inorganic compound that appears as Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999). It has a molecular weight of 78.07 g/mol. Its IUPAC name is calcium difluoride. Boiling point: 2500 °C. Melting point: 1403 °C.

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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.