Viscosity of binary mixtures. III. Tri-n-butylamine with alkanes and monoalkylamines at 303. 15 and 313. 15 K

Journal Article · Tue Sep 01 00:00:00 EDT 1992 · International Journal of Thermophysics; (United States)

DOI:https://doi.org/10.1007/BF00503908· OSTI ID:5991229

Oswal, S L; Patel, S G ^[1]

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1. South Gujarat Univ., Surat (India)

Viscosities [eta] of seven binary systems of n-propylamine, n-butylamine, n-hexylamine, n-octylamine, n-hexane, n-octane, and isoctane (2, 2, 4-trimethylpentane) with tributylamine have been measured at 303.15 and 313.15 K with an Ubbelohde suspended-level viscometer. Based on Eyring's theory, values of excess Gibbs energy of activation [delta]G[sup *E] of viscous flow have been calculated. Deviations of viscosities from linear dependence on the mole fraction and values of [delta]G[sup *E] are attributed to the H-bonding and to the size of alkylamine and alkane molecules. The free volume theory of Prigogine-Flory-Patterson in combination with work by Bloomfield-Dewan has been used to estimate the excess viscosity [delta]1n [eta] and the terms corresponding to enthalpy, entropy, and free volume contributions for the present binary mixtures. 25 refs., 7 figs., 7 tabs.

• OSTI ID: 5991229
• Journal Information: International Journal of Thermophysics; (United States), Vol. 13:5; ISSN 0195-928X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
VISCOSITY
AMINES
BINARY MIXTURES
ACTIVATION ENERGY
ENTROPY
EXPERIMENTAL DATA
FORMATION FREE ENTHALPY
HEXANE
OCTANE
TEMPERATURE RANGE 0273-0400 K
VISCOUS FLOW
DATA
DISPERSIONS
ENERGY
FLUID FLOW
FREE ENTHALPY
HYDROCARBONS
INFORMATION
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
TEMPERATURE RANGE
THERMODYNAMIC PROPERTIES
360606* - Other Materials- Physical Properties- (1992-)
400201 - Chemical & Physicochemical Properties