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HERO ID
1448243
Reference Type
Journal Article
Title
Solid-liquid phase equilibrium of glyphosate in selected solvents
Author(s)
Jia, D; Wang, L; Li, C; Wang, X
Year
2012
Is Peer Reviewed?
Yes
Journal
Fluid Phase Equilibria
ISSN:
0378-3812
Volume
327
Page Numbers
1-8
DOI
10.1016/j.fluid.2012.05.003
Web of Science Id
WOS:000306768700001
URL
https://www.proquest.com/docview/1038291708?accountid=171501&bdid=64565&_bd=ZJIAgbjWrQDGqFjg30Jcknh2gDA%3D
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Abstract
Solid-liquid equilibrium (SLE) data for the glyphosate in
methanol, ethanol, n-propanol, 2-propanol, acetone, benzene and ethyl acetate, and aqueous sodium
chloride solutions were measured with a temperature range from (283 to 352) K. The hypothetical
enthalpy of fusion and melting temperature of glyphosate were estimated. The Wilson model, the
nonrandom two-liquid (NRTL) model, the universal quasi-chemical (UNIQUAC) model, and the
Scatchard-Hildebrand (SH) model were applied to correlate the solid-liquid equilibrium. It is
shown that the Wilson model can give better results than NRTL and UNIQUAC model. The solubility
parameter of glyphosate was obtained based on the SH model. In aqueous sodium chloride solutions,
the solubility of glyphosate increases with the molality of sodium chloride increasing. The
system of glyphosate + sodium chloride + water is found to exhibit a synergistic effect. (C) 2012
Elsevier B.V. All rights reserved.
Keywords
Solid-liquid equilibria; Glyphosate; Activity coefficient; Enthalpy of fusion; Aqueous sodium chloride solution
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Methanol (Non-Cancer)
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