Silicon Dioxide

Silicon dioxide, commonly known as silica, is a chemical compound composed of silicon and oxygen. It is one of the most abundant minerals on Earth and is a major component of the Earth's crust.

The following table provides a comprehensive list of silicon dioxide properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).

Note: click on the icon to switch between Metric and Imperial units.

Table of Silicon Dioxide Properties
Physical Properties
Metric
Chemical FormulaSiO2
Molar Mass60.085 g/mol
Density2650 kg/m3
Thermal PropertiesMetric
Melting Point1710 °C
Boiling Point2950 °C
Thermal Conductivity1.4 W/m·K
Specific Heat Capacity (Cp)787 J/kg·K
Coefficient of Thermal Expansion (αL)5.5×10-5 1/°C

Note: unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)

References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.