Accession Number:

ADA088236

Title:

Composition and Temperature Dependence of Shear Viscosity of Hydrocarbon Mixtures

Descriptive Note:

Final technical rept. 1 Jun 1979-31 May 1980

Corporate Author:

CATHOLIC UNIV OF AMERICA WASHINGTON DC VITREOUS STATE LAB

Report Date:

1980-07-01

Pagination or Media Count:

108.0

Abstract:

Shear viscosities and densities have been measured from 50 C to as low as -56 C for five C10 hydrocarbons n-decane, n-butyl cyclohexane, cis- decalin, n-butyl benzine and 2,7-dimethyl octane and their mixtures. A literature review of theories of hydrocarbon mixture viscosities has been carried out. It is shown that previous theories, in general, cannot give a good account of the mixture viscosities over the wide temperature range covered in this study. Two simple semi-empirical equations have been developed and applied to the description of the combined composition-temperature dependence of the viscosity of both the hydrocarbons studied under the present contract and two polycyclic hydrocarbons studied under a parallel Air Force Contract. The equations assume additivity of component free volumes in the mixtures and contain no more adjustable parameters than are required to account for the viscosities of the pure hydrocarbon components.

Subject Categories:

  • Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE