Calcium Fluoride ( CaF2 ), Fluorite or Fluorospar - Properties and Applications

Jan 24 2004

Background

Calcium Fluoride (CaF2), is also known as fluorite or fluorospar.

It is a naturally occurring mineral that is transparent to translucent with colour varying widely from intense purple, to blue green, to yellow, through to reddish oranges, pinks, whites and browns.

Key Properties
Property Value
Density (g/cm3) 3.18
Melting Point (°C) 1360
Young’s Modulus (GPa) 75.8
Dielectric Constant at 106 Hz 6.76
Co-Efficient of Thermal Expansion (x10-6 °C-1) 18.85
Thermal Conductivity (Wm-1°K-1) 9.71

 

Applications

Calcium Fluoride is used as a flux in the aluminium industry and a source of fluorine for hydrofluoric acid production. It also finds use in cryogenically cooled thermal imaging stages. It can also be used as a gemstone, but its value is not high as it lacks hardness.

 

Source: AZoM.com

 

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