Thermophysical Properties of Fluid Systems

Accurate thermophysical properties are available for several fluids. These data include the following:

  • Density
  • Cp
  • Enthalpy
  • Internal energy
  • Viscosity
  • Joule-Thomson coefficient
  
  • Specific volume
  • Cv
  • Entropy
  • Speed of Sound
  • Thermal conductivity
  • Surface tension (saturation curve only)

Please follow the steps below to select the data required.

  1. Please select the species of interest:
  2. Please choose the units you wish to use:
    QuantityUnits
    Temperature  Kelvin  Celsius  Fahrenheit  Rankine
    Pressure  MPa  bar  atm.  torr  psia
    Density  mol/l  mol/m3  g/ml  kg/m3  lb-mole/ft3  lbm/ft3
    Energy  kJ/mol  kJ/kg  kcal/mol  Btu/lb-mole  kcal/g  Btu/lbm
    Velocity  m/s  ft/s  mph
    Viscosity  uPa*s  Pa*s  cP  lbm/ft*s
    Surface tension*  N/m  dyn/cm  lb/ft  lb/in

    *Surface tension values are only available along the saturation curve.

  3. Choose the desired type of data:
    Isothermal properties   Saturation properties — temperature increments
    Isobaric properties   Saturation properties — pressure increments
    Isochoric properties    
  4. Please select the desired standard state convention:

© 1991, 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.

NIST, National Institute of Standards and Technology Standard Reference
Data Program 		Data
Gateway 		Online
Databases 		Chemistry
WebBook

If you have comments or questions about this site, please contact us.