EXTRACTION EQUILIBRIA OF GALLIUM(III) AND THALLIUM(III) WITH DIHEXYL SULFIDE FROM HYDROCHLORIC ACID

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

KATSUTOSHI INOUE¹  YOSHINARI BABA¹  HIROMI NAKAMURA¹ 

[1] Department of Industrial Chemistry, Saga University

关键词: Extraction;    Equilibrium;    Dihexyl Sulfide;    Gallium(III);    Thallium(III);    1;    2-Dichloroethane;    Hydrochloric Acid;   

DOI  :  10.1252/jcej.19.497

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(2)The extraction equilibria of gallium(III) and thallium(III) from hydrochloric acid with dihexyl sulfide (DHS=S) in 1, 2-dichloroethane were measured at 303 K to examine the effects of the concentrations of hydrochloric acid and dihexyl sulfide. The stoichiometric relation of the extraction reaction of gallium(III) was found to be: GaCl3+S→←;GaCl3S;Ke, Gawhere the equilibrium constant was evaluated as Ke, Ga=1.9×102dm3/mol. Extraction of thallium(III) was found to be expressible by the following two stoichiometric relations for low and high concentration regions of hydrochloric acid, respectively. TlCl3+H++Cl-- + 2S→←HTlCl4; Ke, T1 TlCl3+2H++2Cl-+S→←H2TlCl5S; Ke, T1where the equilibrium constants were evaluated as Ke, T1 = 4.0×106 (dm3/mol)4 and Ke, T1=1.6×105 (dm3/mol)5.

【 授权许可】

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