Properties of caffeine
Thermophysical properties for caffeine (CAS: 58-08-2). 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: 8, H: 10, N: 4, O: 2
- CAS58-08-2
- FormulaC8H10N4O2
- ID58-08-2
- InChIC8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
- InChI KeyRYYVLZVUVIJVGH-UHFFFAOYSA-N
- IUPAC Name1,3,7-trimethylpurine-2,6-dione
- Molecular Weight (kg)194.191
- Phases
- PubChem ID2519
- SMILESCN1C=NC2=C1C(=O)N(C(=O)N2C)C
- Synonyms
Physical Properties
- Acentric factor1.1978
- Critical pressure (bar)41.6041
- Critical temperature (°C)576.85
- Critical volume (m³/kmol)0.51
- Dipole moment
- Melting temperature (°C)238
- Normal boiling temperature (°C)367.25
State-dependent Properties
- API gravity-19.5494
- Compressibility factor0.00586807
- Density (kg/m³)1352.63
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)756.376
- Enthalpy of vaporization (molar) (kJ/kmol)1.4688e+5
- 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))214.436
- Molar volume (m³/kmol)0.143565
- Parachor7.9882e-5
- Poynting correction factor1.00632
- Prandtl number
- Saturation pressure (bar)7.1300e-12
- Saturation temperature (°C)369.739
- Solubility parameter3.0599e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.35397
- Specific heat capacity (kJ/kg·K)1.10426
- Surface tension0.0701659
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit0.0118996
- Upper flammability limit0.0757248
Environmental Properties
- Global warming potential
- Ozone depletion potential