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PRODUCT DATA of Calcium Fluoride
MaterialCalcium Fluoride
Safety Datasheetmsds CaF2
Product DatasheetCaF2_Product_Sheet
Processing and AssemblyCalcium fluoride can be machined with standard diamond tools and water-based oolants. The material takes a good polish using either aluminum oxide, chromic oxide or diamond-based polishing powders using either pitch or cloth laps.
Product Typeglass
Chemical CompositionCaF2
Name of ManufacturerCorning Incorporated, Fluoride Crystals Business
24 E. Brookfield Road, PO Box 189, Brookfield, MA 01535
508 867 8200
508 867 8349
crystals@corning.com
www.corning.com

Corning GmbH, Corning International
Abraham-Lincoln-Strasse 30, D-65189 Wiesbaden, Germany
49 611 7366 100
49 611 7366 143
CIgermany@corning.com
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
PHYSICAL PROPERTIES
Crystal StructureCubic
Specific Gravity3.18
ELASTIC PROPERTIES
Tensile Modulus75.8 GPa
Poisson Ratio0.26
ELECTRICAL PROPERTIES
Dielectric Constant6.81 @ 27C
Data Quality: Manufacturer's data
THERMAL PROPERTIES
Thermal Conductivity61 W/m.K
Thermal Expansion Coefficient18.7 μstrain/°C @ RT
Melting Range1420 °C
Specific Heat0.853 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
AgingIn dry environments, calcium fluoride can be used up to 1000°C, but it does not begin to soften at 800°C.
Moisture AbsorptionExposure to 100% relative humidity at room temperature does not fog polished surfaces even after one month. In normal working conditions, polished surfaces will not degrade.
SPECIAL RECOMMENDATIONS
Special RecommendationsCalcium fluoride is inert to organic chemicals and many acids, including HF. It will slowly dissolve in nitric acid.