Mutual diffusion coefficients for two n-octane isomers in n-heptane

Conference · Fri Sep 01 00:00:00 EDT 1989 · International Journal of Thermophysics; (USA)

OSTI ID:6188654

Li, S F.Y. ^[1]; Wakeham, W A ^[2]

---

1. National Univ. of Singapore (Singapore)
2. Imperial College, London (England)

A new instrument for the measurement of mutual diffusion coefficients in the liquid phase based on the Taylor dispersion technique has been developed. The instrument design and operation are described. The working region of the instrument has been established using an ideal model for the apparatus. The necessary design considerations and corrections to ensure that the instrument operates in accordance with the theory of the method are discussed. The accuracy of the experimental results is estimated to be {plus minus} 1%. Experimental data for n-octane and 2,2,4-trimethylpentane at infinite dilution in n-heptane are reported. Correlation schemes based on the rough-hard sphere theory have been used to represent the experimental data and their predictive capability examined.

• OSTI ID: 6188654
• Report Number(s): CONF-880606-; CODEN: IJTHD
• Journal Information: International Journal of Thermophysics; (USA), Vol. 10:5; Conference: 10. symposium on thermophysical properties, Gaithersburg, MD (USA), 20-23 Jun 1988; ISSN 0195-928X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
47 OTHER INSTRUMENTATION
BINARY MIXTURES
SELF-DIFFUSION
HEPTANE
ISOMERS
MEASURING INSTRUMENTS
DESIGN
OCTANE
ACCURACY
CORRECTIONS
CORRELATIONS
DILUTION
DISPERSIONS
FORECASTING
HARD-SPHERE MODEL
LIQUIDS
MATHEMATICAL MODELS
MEASURING METHODS
OPTICAL SYSTEMS
ALKANES
DIFFUSION
FLUIDS
HYDROCARBONS
MIXTURES
ORGANIC COMPOUNDS
400201* - Chemical & Physicochemical Properties
440600 - Optical Instrumentation- (1990-)