Gas Properties for Argon and Hydrogen at high Temp
 

Hi!

Does anyone have a good reference for the properties of Argon and Hydrogen at higher Temperatures and pressure? The only values i found ( like at http://webbook.nist.gov/chemistry/fluid/ ) are up to 400 K.

I need 300-1400 K and 1-20 bar!

The properties I need are: heat capacity, viscosity, density, Pr Number, heat conductivity and thermal diffusivity.

Any help is highly apreciated!

Ralf