Calcium Fluoride - CaF2
Calcium fluoride is an inorganic compound with the formula CaF2. This highly stable
compound of calcium and fluorine occurs naturally as the mineral fluorite, also called fluorspar.
Asbury Carbons provides two principal industrial grades of fluorspar: Metallurgical and Acid
grade.
Metallurgical Grade is used as a flux to lower the melting point and lower the viscosity of slag
formed during production of steel. This increases the effectiveness of the slag in removing
impurities, and simplifies slag removal. Fluorite may also be used in the production of Portland
cement, where its ability to flux helps promote the formation of “clinker” and tri-calcium silicate.
Acid Grade is used in lubricants, friction products, welding rod coatings, and other applications
where a high purity fluorite product is required. Acid grade fluorite may also be used to flux certain
mineral and ceramic substances, or to lower the viscosity of melts of these materials. CaF2 can be
also be used as a ceramic glue or sintering aid for some abrasive wheels and other ceramic
components that are fluorite-compatible.
Asbury Grades
Designation
Type
Size
% CaF2
2 ¼” X ¼”
85 – 90
CaF2
Metallurgical Grade
CaF2 Fine
Acid Grade
80% minus 200 Mesh
97.89
CaF2 Superfine
Acid Grade
87% Minus 325 Mesh
97.89
CaF2 Microfine
Acid Grade
micronized (ground) to
customer’s requirements
97.89
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