Properties of silicon
Thermophysical properties for silicon (CAS: 7440-21-3). 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
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Open CalculatorIdentification
- AtomsSi: 1
- CAS7440-21-3
- FormulaSi
- ID7440-21-3
- InChISi
- InChI KeyXUIMIQQOPSSXEZ-UHFFFAOYSA-N
- IUPAC Namesilicon
- Molecular Weight (kg)28.0855
- Phases
- PubChem ID5.4611e+6
- SMILES[Si]
- Synonyms
Physical Properties
- Acentric factor1.514
- Critical pressure (bar)537
- Critical temperature (°C)4885.85
- Critical volume (m³/kmol)0.2326
- Dipole moment0
- Melting temperature (°C)1414
- Normal boiling temperature (°C)3265
State-dependent Properties
- API gravity-75.9987
- Compressibility factor4.9277e-4
- Density (kg/m³)2329.64
- 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))19.9906
- Molar volume (m³/kmol)0.0120557
- Parachor1.1539e-5
- Poynting correction factor0.956684
- Prandtl number
- Saturation pressure (bar)100.564
- Saturation temperature (°C)-112.032
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity2.33193
- Specific heat capacity (kJ/kg·K)0.711776
- Surface tension1.19674
- Thermal conductivity149.028
- 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