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Solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide

Lamba, Neha and Narayan, Ram C and Modak, Jayant and Madras, Giridhar (2016) Solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide. In: JOURNAL OF SUPERCRITICAL FLUIDS, 107 . pp. 384-391.

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Official URL: http://dx.doi.org/10.1016/j.supflu.2015.09.026

Abstract

The solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide were measured at 308, 313,323 and 333K, and at pressures of 10-18 MPa. Solubilities (in mole fraction),ranged from 0.4 x 10(-3) to 17.4 x 10(-3) for 10-undecenoic acid and 2.7 x 10(-3) to 25 x 10(-3) for geraniol, respectively. The AARD was around 11% and 5% for these models for 10-undecenoic acid and geraniol, respectively. The solubilities of both compounds showed retrograde behavior wherein the solubilities decrease with temperature at isobaric conditions. The solubility of geraniol was higher than 10-undecenoic acid at all investigated temperatures and pressures. The data were found to be self consistent based on the Mendez-Santiago model. New models based on association theory using van Laar and Margules activity coefficient models for solute in liquid phase were derived, and used to correlate the solubilities. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords: Solubilities; Empirical models; Association model; Akaike information criteria
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 07 Jan 2016 05:12
Last Modified: 07 Jan 2016 05:12
URI: http://eprints.iisc.ac.in/id/eprint/53032

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