Accession Number : ADD095477

Title :   Thermophysical Properties of Normal Butane from 135 to 700 K at Pressures to 70 MPa. Revision.

Descriptive Note : Final rept.,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Haynes, W M ; Goodwin, R D

Report Date : Apr 1982

Pagination or Media Count : 201

Abstract : Using a modified version of the nonanalytic equation of state, thermophysical properties of normal butane are derived from physical properties data and are tabulated at integral temperatures from 135 to 700 K along isobars at pressures to 70 MPa. These isobar tables, along with a table for the saturated liquid, give values for densities, compressibility factors, internal energies, enthalpies, entropies, heat capacities, fugacities, sound velocities, dielectric constants, and isochore and isotherm derivatives. Equations, whose coefficients are determined from a least squares fit to selected experimental data, are also presented for vapor pressures, orthobaric liquid and vapor densities, ideal gas properties, second virial coefficients, dielectric constants, heats of vaporization, melting pressures, and orthobaric liquid specific heats, enthalpies, and entropies. Comparisons between experimental and calculated values for all properties considered here are reported in detail. (Author)

Descriptors :   *THERMOPHYSICAL PROPERTIES, *BUTANES, DENSITY, DIELECTRIC PROPERTIES, CONSTANTS, ENTHALPY, ENTROPY, EQUATIONS OF STATE, ENERGY, ISOBARS(PRESSURE), ISOTHERMS, JOULE THOMSON EFFECT, LATENT HEAT, HEAT OF VAPORIZATION, MELTING POINT, SPECIFIC HEAT, VAPOR PRESSURE, ACOUSTIC VELOCITY, COMPRESSIVE PROPERTIES, TABLES(DATA)

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE