calcium fluoride

noun

a white, crystalline compound, CaF 2 , insoluble in water, occurring in nature as the mineral fluorite: used as a flux in metallurgy and as a decay preventive in dentifrices.

Calcium fluoride must be first converted into sulphate by evaporation in a platinum dish with sulphuric acid.

Fluorine is frequently met with as calcium fluoride or fluor-spar (CaF2).

While the arcs with plain carbons are bluish-white, those with carbons containing calcium fluoride have a notable golden glow.

A number of the fluorides are known, but only one of them, calcium fluoride (CaF2), is of importance.

Milky glass is made by mixing calcium fluoride, tin oxide, or some other insoluble substance in the melted glass.

April 25, 2024firkin

[fur-kin ]

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