Author
M.S. Ananth
Bio: M.S. Ananth is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Entropy of mixing & Osmotic coefficient. The author has an hindex of 2, co-authored 2 publications receiving 10 citations.
Papers
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TL;DR: In this paper, the authors proposed a simplified self-consistent local composition (SCLC) model with fewer and more orthoganal parameters for single and mixed electrolyte systems.
8 citations
TL;DR: Narayanan, K.V.S., and Ananth, M.I. as discussed by the authors showed that for engineering purposes lattice theories can only provide mathematical expressions that fit mixture data accurately provided these expressions contain one or two adjustable parameters.
2 citations
Cited by
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TL;DR: In this paper, a large number of semi-empirical models have been proposed that are here reviewed, in order to help the reader find a model best suited for a system of interest.
Abstract: Modeling the chemical equilibrium in ionic solutions encountered in industrial applications, especially in the field of hydrometallurgy, still remains an unresolved issue. The complicated speciations, as well as the high ionic strengths encountered in these solutions, render the theories of analytical chemistry practically useless. The Debye–Huckel theory is examined in depth, so as to reveal the reasons of its failure. To remedy this problem, over the years, a large number of semi-empirical models have been proposed that are here reviewed, in order to help the reader find a model best suited for a system of interest. The models are classified into three main categories, based on their fundamental logic: ion interaction models describe the system through the physical interactions of the ions; ion association models describe the system through chemical equilibriums; and finally hybrid models use concepts from both previous categories. Focus is given in presenting the idea upon which each model is ...
20 citations
TL;DR: In this article, the authors evaluated the thermodynamic inhibition effect of D-sorbitol, a polyhydroxy compound, for both methane (C H 4 ) and carbon dioxide (C O 2 ) hydrates.
12 citations
TL;DR: In this paper, new equations have been obtained for the correlation of the apparent molal volume of electrolyte solutions based on the some local composition models, such as the non-random factor (NRF), modified nonrandom two-liquid (MNRTL), and extended Wilson (EW) models.
9 citations
TL;DR: In this article, the osmotic coefficients of sodium bromide and sodium thiocyanate in methanol have been measured by the isopiestic method at 25 °C.
7 citations
TL;DR: In this paper, a new model for the excess Gibbs energy of hydrotrope solutions is presented, which is based on the local composition model by Chen et al. The model parameters are obtained using experimental data for six hydrotropes with four solutes at different temperatures.
Abstract: A new model for the excess Gibbs energy of hydrotrope solutions is presented. This model is based on the local composition model by Chen et al. Hydrotropes are usually organic salts that can increase the solubility of organic and inorganic compounds in water. The proposed model has five adjustable parameters; one of them is related to long-range forces, and four of them are related to short-range forces. Long-range forces are modeled by the Pitzer-Debye-Huckel equation. However, in our model, the effect of the molecular solute on the dielectric constant of water has also been considered. Modeling of short-range forces is based on local composition concepts. The model parameters are obtained using experimental data for six hydrotropes with four solutes at different temperatures. The water solubility of molecular solutes in the presence of hydrotropes has been calculated for different systems. Accurate results are obtained. © 2005 American Institute of Chemical Engineers AIChE J, 2006
7 citations