Properties of silica
Thermophysical properties for silica (CAS: 7631-86-9). Use the selector below to view properties in different unit systems.
Calculation Conditions
The following state-dependent properties were calculated at these standard conditions.
Temperature
25 °C
Pressure
1.01325 bar
Need properties at a different state? Use our interactive calculator.
Open CalculatorIdentification
- AtomsO: 2, Si: 1
- CAS7631-86-9
- FormulaO2Si
- ID7631-86-9
- InChIO2Si/c1-3-2
- InChI KeyVYPSYNLAJGMNEJ-UHFFFAOYSA-N
- IUPAC Namedioxosilane
- Molecular Weight (kg)60.0843
- Phases
- PubChem ID2.4261e+4
- SMILESO=[Si]=O
- Synonyms
Physical Properties
- Acentric factor1.14091
- Critical pressure (bar)612.076
- Critical temperature (°C)3626.62
- Critical volume (m³/kmol)0
- Dipole moment0
- Melting temperature (°C)164.5
- Normal boiling temperature (°C)2230
State-dependent Properties
- API gravity-76.7249
- Compressibility factor8.1265e-4
- Density (kg/m³)3022.06
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)0
- Enthalpy of vaporization (molar) (kJ/kmol)
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient
- Kinematic viscosity
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))46.5466
- Molar volume (m³/kmol)0.0198819
- Parachor2.4637e-5
- Poynting correction factor1.00095
- Prandtl number
- Saturation pressure (bar)1.6204e-56
- Saturation temperature (°C)2228.27
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity3.02503
- Specific heat capacity (kJ/kg·K)0.774688
- Surface tension1.24919
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit
- Upper flammability limit
Environmental Properties
- Global warming potential
- Ozone depletion potential