Contents - Index



Neopentane provides high accuracy thermodynamic properties for neopentane (2,2-dimethylpropane, C(CH3)4, MW 72.149 g/gmole, CAS No. 463-82-1) using the Fundamental Equation of State presented in:


Short Fundamental Equations of State for 20 Industrial Fluids

Eric W. Lemmon, Roland Span

J. Chem. Eng. Data, 2006, 51 (3), 785-850


The correlation is valid for temperatures in the range between triple point at 256.6 K to 550 K for pressures less than 200 MPa.  


Enthalpy and entropy values are referenced to 200 kJ/kg and 1 kJ/kg-K respectively for saturated liquid at 273.15 K. 


Transport properties are provided using correlations given in:

Yaws, Carl L., ed. Chemical Properties Handbook. New York: McGraw-Hill, 1999. 


The Lennard-Jones parameters are from:

J. C. McCoubrey and N. M. Singh,

The Vapor Phase Viscosities of the Pentanes

J. Phys. Chem. 1963, 67, 517-518



Fluid Property Information