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Citation: Dong Yanjie, Yang Zichao, Wang Xiushan, Yan Jumei. THERMODYNAMIC STUDY ON EXTRACTION OF Pd(Ⅱ) AND Pt(Ⅳ) WITH TRIALKYL BENZYL AMMONIUM CHLORIDE[J]. Chinese Journal of Applied Chemistry, ;1990, 7(2): 62-64. shu

THERMODYNAMIC STUDY ON EXTRACTION OF Pd(Ⅱ) AND Pt(Ⅳ) WITH TRIALKYL BENZYL AMMONIUM CHLORIDE

1.
Department of chemistry, Shaanxi Normal University, Xi'an 710062

Received Date: 11 July 1989
Available Online: 26 September 1989

Extraction of HPdCl₄^- and PtCl₆^2- with trialkyl benzyl ammonium chloride (7407) from hydrochloric acid medium has been studied. On the basis of the influences of tempera-ture and concentration of 7407 upon the distribution ratio D_pd and D_pt, the extraction equi-librium constants and some thermodynamic functions at 30℃ were obtained:K_pd=2.92×10⁴, K^pt=1.44×10⁶;△H_pd=-8.37kJ/mol, △H_pt=-24.5kJ/mol;△G_pd=-25.9kJ/mol, △G_pt=-35.7kJ/mol;△S_pd=57.8J/mol·K, △S_pt=37.0J/mol·K.
- extraction,
- palladium,
- platinum,
- trialkyl benzyl ammonium chloride,
- thermodynamics
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