학술논문
A Solvent-Extraction Study of the Hydrolysis of Tracer Concentrations of Bismuth(III) in Chloride Solutions
Document Type
Article
Source
Bulletin of the Chemical Society of Japan; March 1987, Vol. 60 Issue: 3 p877-883, 7p
Subject
Language
ISSN
00092673; 13480634
Abstract
The backward solvent extraction with dithizone(H2dz)–CCl4solutions was used to examine the chemical species of bismuth(III) in 1 mol dm−3of a (H,Na)Cl solution. A tracer concentration of bismuth(III) (ca. 10−11mol dm−3) was found to exist mainly in the form of [BiCl5]2−, [BiCl5(OH)]3−, [BiCl4(OH)]2−, and [BiCl3(OH)3]3−in the (H,Na)Cl solutions. The constants of the successive hydrolysis, β1, β2, and β3, were calculated by using the distribution data. The resulting logβ1, logβ2, and logβ3values were 10.9, 17.5, and 30.2 respectively. The chemical composition of the extracted species was most probably [Bi(Hdz)3].