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Gebhardt M, Köhler W. Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection. Eur Phys J E Soft Matter. 2015;38(4):24doi: 10.1140/epje/i2015-15024-5.
Gebhardt, M., & Köhler, W. (2015). Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection. The European physical journal. E, Soft matter, 38(4), 24. https://doi.org/10.1140/epje/i2015-15024-5
Gebhardt, M, and Köhler, W. "Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection." The European physical journal. E, Soft matter vol. 38,4 (2015): 24. doi: https://doi.org/10.1140/epje/i2015-15024-5
Gebhardt M, Köhler W. Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection. Eur Phys J E Soft Matter. 2015 Apr;38(4):24. doi: 10.1140/epje/i2015-15024-5. Epub 2015 Apr 24. PMID: 25904305.
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Eur Phys J E Soft Matter. 2015 Apr;38(4):24. doi: 10.1140/epje/i2015-15024-5. Epub 2015 Apr 24.

Contribution to the benchmark for ternary mixtures: Measurement of the Soret and thermodiffusion coefficients of tetralin+isobutylbenzene+n-dodecane at a composition of (0.8/0.1/0.1) mass fractions by two-color optical beam deflection.

The European physical journal. E, Soft matter

M Gebhardt, W Köhler

Affiliations

  1. Physikalisches Institut, Universität Bayreuth, D-95440, Bayreuth, Germany.

PMID: 25904305 DOI: 10.1140/epje/i2015-15024-5

Abstract

Within the framework of an international benchmark test we have performed measurements of the Soret and thermodiffusion coefficients of the organic ternary mixture (0.8/0.1/0.1 mass fraction) of 1,2,3,4-tetrahydronaphthaline (THN), isobutylbenzene (IBB) and n -dodecane (n C12) at 298.15K by means of a two-color optical beam deflection technique (OBD). The data evaluation procedure is based on a least squares fitting routine for an approximate analytical solution for the Soret cell problem. The condition number of the contrast factor matrix and standard error propagation are used for an error estimation for the measured Soret and thermodiffusion coefficients. The Soret coefficients obtained are S (') T(THN) = (1.20±0.09)×10(-3) K^-1, S (') T(IBB) = (- 0.34±0.14)×10(-3) K^-1, and S (') T(nC12) = (- 0.86±0.06)×10(-3) K^-1 and the corresponding thermodiffusion coefficients are D (') T(THN) = (0.72±0.26)×10(-12) m^2(s K)^-1, D (') T(IBB) = (- 0.22±0.42)×10(-12) m^2(s K)^-1, and D (') T(nC12) = (- 0.50±0.16)×10(-12) m^2(s K)^-1. These results will be used as ground-based reference data for the DCMIX project, where thermodiffusion experiments of ternary mixtures are measured in a microgravity environment aboard the International Space Station (ISS).

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