CAS 7789-75-5 CALCIUM FLUORIDE - Materials / Alfa Chemistry

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CALCIUM FLUORIDE

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Catalog Number

ACM7789755-1

CAS Number

7789-75-5

Product Name

CALCIUM FLUORIDE

Structure

Category

Electrolytes; Ceramic Materials; Optical Coatings

Synonyms

Calcium difluoride

Description

Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999);COLOURLESS CRYSTALS OR WHITE HYGROSCOPIC POWDER.

IUPAC Name

Calcium;difluoride

Molecular Weight

78.07

Molecular Formula

CaF2;CaF2;CaF2

Canonical SMILES

[F-].[F-].[Ca+2]

InChI

InChI=1S/Ca.2FH/h;2*1H/q+2;/p-2

InChI Key

WUKWITHWXAAZEY-UHFFFAOYSA-L

Boiling Point

2500 °C

Melting Point

1402 °C

Flash Point

2500 °C

Purity

99%+

Density

3.18 g/mL at 25 °C (lit.)

Solubility

Slightly soluble in acid, insoluble in acetone

Appearance

White powder or cubic crystals

Application

Calcium fluoride, commonly known as fluorite or fluorspar, is a versatile and colorless crystalline substance with a range of industrial applications. Its low solubility in water and transparency make it ideal for detecting gamma rays and charged particles, albeit with a limitation in gamma-ray spectrometry at higher energies due to its low atomic number. This property also makes it an effective detector for beta particles with minimal backscattering. Additionally, calcium fluoride serves as a crucial material in the production of hydrofluoric acid and in the etching of glass. The compound's high resistance to thermal and mechanical shock allows it to be fabricated into various detector geometries. It is not hygroscopic, making it suitable for a variety of vacuum applications and direct contact with radioactive samples. In the steel industry, it is used as a flux to increase slag fluidity, while in the chemical sector, it is a source for fluorine and its compounds. Furthermore, calcium fluoride is utilized in the optical industry for UV-ray transmission and in the production of enamels, ceramics, and white cement. Its application extends to fluoridating drinking water, and the pure form plays a role as a catalyst in dehydration and dehydrogenation processes.

Storage

-20 °C

Average Particle Size

<80 µm

Chemical Formula

CaF2

Color/Form

White

Complexity

Covalently-Bonded Unit Count

EC Number

232-188-7

Exact Mass

77.9593972

Formal Charge

Heat of Vaporization

335 KJ/mol

Heavy Atom Count

ICSC Number

1323

MeSH Entry Terms

Calcium Fluoride;Fluoride, Calcium

Monoisotopic Mass

77.9593972

Odor

Odorless

Other Experimental

When F ions are pptd with Ca+2 in absence of CO3 ions, a gel is obtained; Mohs' hardness= 4; becomes luminous when heated;MP: 1350 °C; Mohs hardness 4; specific gravity 3.2 /Fluorspar/

Refractive Index

Index of refraction: 1.4338

Rotatable Bond Count

RTECS Number

EW1760000

Topological Polar Surface Area

0 Å²

UNII

O3B55K4YKI

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