Calcium Fluoride

Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.

calcium fluoride

[′kal·sē·əm ′flu̇r‚īd]
(inorganic chemistry)
CaF2 Colorless, cubic crystals that are slightly soluble in water and soluble in ammonium salt solutions; used in etching glass and preparing hydrofluoric acid.

Calcium Fluoride


CaF2, a salt; colorless crystals. Density, 3.18 g per cm3; melting point, 1360°C.

Calcium fluoride is practically insoluble in water. It exists in nature in the form of the mineral fluorite (fluorspar) and is a component of apatite. Calcium fluoride serves as a source material in the preparation of hydrogen fluoride and other compounds and as a flux in metallurgy.

References in periodicals archive ?
6) Arsenic levels are sufficiently low that they are unlikely to render the calcium fluoride unusable, but this must also be verified.
Rolla, On the Role of Calcium Fluoride in the Cariostatic Mechanism of Fluoride, Acta Odontol.
Calcium fluoride and strontium chloride of Ch qualification were used as initial components.
The UV-FTS uses a calcium fluoride beamsplitter, which has a short wavelength operating limit of approximately 135 nm.
Ordinarily, a crystal with a cubic structure such as calcium fluoride does not exhibit birefringence in stress-free material because of its high symmetry.
The project goal was to reduce the amount of calcium fluoride left in the gypsum co-product that discharges from the kilns, thus maximizing the use of the raw material and enhancing the quality parameters of the gypsum co-product.
In our waste water treatment system, we use alkaline chemicals to neutralize the fluoride solution and the calcium fluoride solid is separated from the waste water.
This may be attributed to the formation of calcium fluoride at the outer surface of the lesions following the use of the topical agents with fluoride being blocked from penetration into the lesions body.
A NIST physicist recently showed that calcium fluoride is inherently birefringent in the deep ultraviolet--meaning that the crystal refracts light differently depending on the polarization of the light.
The researchers tested their idea by fabricating nanocrystalline specimens of calcium fluoride and titanium dioxide.
This new coating can be deposited on silica, magnesium fluoride, calcium fluoride, and crystal quartz," states Cailong Bao, Research and Development Manager of CVI Laser, LLC.
It is a domestic source of fluorine, and is an ore from which calcium fluoride is produced.