A Solvent-Extraction Study of the Hydrolysis of Tracer Concentrations of Bismuth(III) in Chloride Solutions

Abstract

The backward solvent extraction with dithizone(H2dz)–CCl4 solutions was used to examine the chemical species of bismuth(III) in 1 mol dm−3 of a (H,Na)Cl solution. A tracer concentration of bismuth(III) (ca. 10−11 mol 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 logβ3 values were 10.9, 17.5, and 30.2 respectively. The chemical composition of the extracted species was most probably [Bi(Hdz)3].

Mesoporous PdBi nanocages for enhanced electrocatalytic performances by all-direction accessibility and steric site activation

“…S6 †). 25,26 Moreover, the acid concentration imparts pore regulations to the mesoporous shells. A relatively low growth speed at a higher acid concentration benets the formation of ordered mesoporous shells, thus resulting in well-organized nanocages (Fig.…”

A Cation-exchange Study of Tracer Concentrations of Bismuth(III) in Perchlorate Solutions

“…Their studies suggested the major existence of polynuclear Bi(III) species as a result of hydrolysis. On the other hand, Hataye et al [2] and Suganuma et al [3] studied the mononuclear species formed in more diluted concentrations ofbismuth(III)(ca. 10" 11 -10" 9 Μ, 1 Μ = 1 mol dm" 3 ) in 1.0 M(H,Na)C10 4 ,1.0 M(H,Na)N0 3 , and 1.0 Μ (H,Na)Cl solutions, based on a backward solvent extraction with a dithizone(H 2 dz)-CCl 4 solution.…”