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Ensinger PEI

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Silicon Dioxide, SiO2 (Alpha Quartz)
Categories: Ceramic; Oxide; Silicon Oxide

Material Notes: Colorless hexagonal crystals

Key Words: SiO2, Silica
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Physical PropertiesOriginal ValueComments
Density 2.648 g/cc
a Lattice Constant 4.9136 Å
c Lattice Constant 5.4051 Å
Formula Units/Cell (Z) 3
Molecular Weight 60.085 g/mol
 
Mechanical PropertiesOriginal ValueComments
Hardness, Mohs 7.0
 
Electrical PropertiesOriginal ValueComments
Magnetic Susceptibility -0.0000296cm^3/mol
 
Thermal PropertiesOriginal ValueComments
Boiling Point 2950 °C
Transformation Temperature 573 °CTransition to quartz
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.553ω, Na
 1.544
@Wavelength 589.3 nm
η, Na
 
Descriptive Properties
CAS Number14808-60-7
Crystal StructureHexagonal

References for this datasheet.

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