Cat Number: PIE-0285

Silicon Dioxide

APIs
CAS Number
7631-86-9
Synonyms
Silica
Dioxosilane
Quartz
Description
Transparent to gray, odorless powder. Irritating to the skin and eyes on contact. Inhalation will cause irritation in the respiratory tract. [Note: Amorphous silica is the non-crystalline form of SiO2.]
Molecular Weight
60.084
Molecular Formula
SiO2
SMILES
O=[Si]=O
EINECS
231-545-4
Appearance
Transparent to gray, odorless powder
Boiling Point
4046 °F
Density, g/cm3
2.2 @ 25 ℃
Melting Point
1710 ℃
Vapour Pressure
approx 0 mm Hg
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