Effect of background electrolyte concentration on the heat effects in the processes of formation of L-asparagine complexes with Cu2+ ions in aqueous solution

Russian Journal of General Chemistry - Tập 82 - Trang 417-421 - 2012
G. G. Gorboletova1, S. N. Gridchin1, S. A. Shabunin1
1Ivanovo State University of Chemical Technology, Ivanovo, Russia

Tóm tắt

A direct calorimetric method was used to measure the heat effects in the reactions of formation of Cu(II) complexes with L-asparagine in aqueous solutions at 298.15 K and ionic strength 0.5, 1.0, 1.5 (KNO3). The standard thermodynamic characteristics (Δr H 0, Δr G 0, Δr S 0) of the processes of complex formation in the system under study were calculated.

Tài liệu tham khảo

Davies, C.W., J. Chem. Soc., 1938, p. 2093.

Berton, G., Pure & Appl. Chem., 1995, vol. 67, no. 7, p. 1117.

Baxter, A.C. and Williams, D.R., J. Chem. Soc., Dalton Trans., 1974, p. 1117.

Arena, G., Conato, C., Contino, A., and Pulidori, F., Ann. Chim. (Rome), 1998, vol. 88, p. 1.

Boraei, A., Taha, F., and Mohamed, A., J. Chem. Eng. Data, 2001, vol. 46, p. 267.

Vasil’ev, V.P., Termodinamicheskie svoistva rastvorov elektrolitov (Thermodunamic Properties of Solutions of Electrolytes), Moscow: Vysshaya Shkola, 1982, p. 320.

Vasil’ev, V.P., Kochergina, L.A., Grosheva, S.G., and Bodemina, E.E., Interuniversity Collection of Scientific Publications, Ivanovo: IKhTI, 1991, p. 83.

Vasil’ev, V.P., Shekhanova, L.D., Zh. Neorg. Khim., 1974, vol. 19, no. 11, p. 2969.

Gorboletova, G.G., Gridchin, S.N., and Lutsenko, A.A., Zh. Fiz. Khim., 2010, vol. 84, no. 11, p. 2036.

Gorboletova, G.G., Gridchin, S.N., and Lutsenko, A.A., Koord. Khim., 2010, vol. 36, no. 9, p. 699.

Chernikov, V.V., Candidate Sci. (Chem.) Dissertation, Ivanovo, 1988.

Korostelev, P.P., Prigotovlenie rastvorov dlya khimikoanaliticheskikh rabot (Preparing Solutions for Chemical-Analytical Use), Moscow: Nauka, 1964, p. 235.

Borodin, V.A., Vasil’ev, V.P., and Kozlovskii, E.V., Matematicheskie zadachi khimicheskoi termodinamiki (Mathematic Issues of Chemical Thermodynamics), Novosibirsk: Nauka, 1985, p. 219.