CO2 Phase Calculator

    This calculation tool provides approximate values and is not intended for design purposes. Its aim is to show how the thermodynamic properties relate to one another and how they change as pressure and temperature vary.

    CO2 Phase Diagram Engine

    Carbon Dioxide (CO2) Phase & Property Engine

    High-Precision NIST Span-Wagner EOS Density Calibration (0-400 bar, 0° to 120° C)

    UNITS
    P:
    T:
    Pressure (P) 350.0 bar
    0.1 bar200 bar400 bar
    Temperature (T) 50.0 °C
    0°C31.1°C120°C
    Benchmarks
    SUPERCRITICAL Current Phase State
    893.5 kg/m³
    0.8935 g/cm³
    SOLVENCY (DELTA) 15.7 MPa⁰.⁵
    MASS DIFFUSIVITY 1.41 × 10⁻⁴ cm²/s
    P-T Phase Diagram (Interactive Canvas)
    Viscosity
    92.4 µPa·s
    Kinematic Visc.
    0.098 cSt
    Compressibility (Z)
    0.482
    Specific Volume
    0.00107 m³/kg