Properties of formaldehyde
Thermophysical properties for formaldehyde (CAS: 50-00-0). 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
- AtomsC: 1, H: 2, O: 1
- CAS50-00-0
- FormulaCH2O
- ID50-00-0
- InChICH2O/c1-2/h1H2
- InChI KeyWSFSSNUMVMOOMR-UHFFFAOYSA-N
- IUPAC Namemethanal
- Molecular Weight (kg)30.026
- Phaseg
- PubChem ID712
- SMILESC=O
- Synonyms
Physical Properties
- Acentric factor0.2484
- Critical pressure (bar)65.8612
- Critical temperature (°C)134.85
- Critical volume (m³/kmol)0.101
- Dipole moment2.33
- Melting temperature (°C)-92
- Normal boiling temperature (°C)-19.1
State-dependent Properties
- API gravity56.7202
- Compressibility factor1
- Density (kg/m³)1.22728
- Dynamic viscosity (cP)0.0118609
- Enthalpy of vaporization (mass) (kJ)695.268
- Enthalpy of vaporization (molar) (kJ/kmol)2.0876e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient2.4748e-13
- Kinematic viscosity9.6644e-6
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))35.388
- Molar volume (m³/kmol)24.4654
- Parachor1.6695e-5
- Poynting correction factor0.992984
- Prandtl number0.734736
- Saturation pressure (bar)5.2731
- Saturation temperature (°C)-19.2372
- Solubility parameter2.1189e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.03617
- Specific heat capacity (kJ/kg·K)1.17858
- Surface tension0.027376
- Thermal conductivity0.0190259
- Thermal diffusivity1.3154e-5
Safety Properties
- Autoignition temperature (°C)424
- Flash point temperature (°C)60
- Lower flammability limit0.07
- Upper flammability limit0.73
Environmental Properties
- Global warming potential
- Ozone depletion potential