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Upper consolute temperature of water-phenol systems with some additives

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Abstract

Using upper consolute temperatures (UCT) and corresponding consolute compositions (CC) of water-phenol systems with each of 0.1 mol kg−1 salts and acids, 1.0% polyethylene glycol 200, 0.01 mol kg−1 surfactant and aromatic compounds, we obtained 0.01 mol kg−1 CaF2 and CrCl3 compositions. Focusing on UCT and CC, the role of valence electrons and shell number, basicity, hydrophilic, hydrophobic and π conjugated electrons of corresponding additives are reported. The surfactants and π conjugation electrons are noted to decrease the UCT in a constant ratio that depicts the state and inherent strength of ionic and molecular-water interactions. The data are useful in the investigation of cloud points of immiscible solutions based on the Hofmeister series.

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  1. Chemistry Research Lab, Deshbandhu College, University of Delhi, New Delhi, 110019, India

    M. Singh

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  1. M. Singh
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Correspondence to M. Singh.

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Singh, M. Upper consolute temperature of water-phenol systems with some additives. JICS 3, 334–339 (2006). https://doi.org/10.1007/BF03245956

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  • DOI: https://doi.org/10.1007/BF03245956

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