Chemistry & Chemical Technology. – 2011. – Vol. 5, No. 2

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The scientific-technical journal

It is the scientific-technical journal in English in Ukraine discussing actual problems of chemistry and chemical technology. Compared with other chemical journals Ch&ChT is publishing materials of both theoretical and practical values in such fields as analytical, general organic, physical and inorganic chemistry; chemistry of high molecular compounds; materials science and engineering; chemical kinetics and catalysis; technology of inorganic substances; technology of organic synthesis products; chemical technology of processing of combustible minerals; processes and apparatus of chemical and food productions; biotechnology and ecology.

Chemistry & Chemical Technology : [the scientific-technical journal] / Lviv Polytechnic National University ; editor-in-chief M. Bratychak. – Lviv : Publishing House of Lviv Polytechnic National University, 2011. – Volume 5, number 2. – P. 123–239, VII : ill.

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Author: search.filters.author.Van-Chin-Syan, Yuri

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    Thermodynamic properties of solutions of the acrylic acid in 1,2-dichloroethane and acetic acid
    (Publishing House of Lviv Polytechnic National University, 2011) Serheyev, Valentyn; Kos, Yuri; Van-Chin-Syan, Yuri
    The saturated vapor pressure of the acrylic acid solutions in 1,2-dichloroethane and acetic acid was measured by static tensimetric method in the temperature range of 295 to 355 K. The composition of the equilibrium phases as well as the activity coefficients (γ1 and γ2) were received from the experimental measurements of the temperature-dependent saturated vapor pressure. Then we used the temperature and concentration dependent activity coefficients to calculate the excess thermodynamic functions of the solutions mixing (HE, GE, SE). Статичним тензиметричним методом виміряний тиск насиченої пари над розчинами акрилової кислоти в 1,2-дихлоретані та оцтовій кислоті в температурному інтервалі 295–355 К. За даними температурної залежності тиску насиченої пари розраховано склад рівноважних фаз та коефіцієнти активності компонентів. За температурною та концентраційною залежністю коефіцієнтів активності розраховані надлишкові термодинамічні функції змішування досліджених розчинів (HE, GE, SE).