Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

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POLYTHERMAL SOLUBILITY FERROCENYLACETIC AND FERROCENYLDIACETIC ACIDS IN WATER

Chervov A.A. 1 Petrov A.I. 2 Fabinski P.V. 1 Fedorov V.A. 1
1 Siberian state technological University
2 Sibirian federal university
Polythermal solubility of ferrocenylacetic and ferrocenyldiacetic acids in water in the temperature range from 25 to 50 OC was studied by the method of isothermal saturation. The concentration of acids was determined by spectrophotometric method. Identification and purity of compounds were carried out by melting and electronic spectrum. Solubility of ferrocenylacetic acid at all investigated temperatures is higher than of ferrocenyldiacetic acid, what is associated with increase of sizes, and therefore with the increase of the energy to form the cavity in accordance with the theory of large-scale particles. Solubility of acids was associated with a solubility of ferrocene, it was revealed that the numerical values of solubility ferrocenylacetic acid are higher, and those of ferrocenyldiacetic acid are slightly lower than ferrocene. The thermodynamic parameters of process of dissolution of both acids were calculated according to the temperature dependence of solubility. The enthalpy and entropy contribution to the process of solubility of the given acids in water were analyzed.