Di-n-butyl Phosphorothioic Acid as an Extractant for Metal Ions

Autor:	T. H. Handley
Rok vydání:	1963
Předmět:	Aqueous solution Metal ions in aqueous solution Inorganic chemistry Parts-per notation chemistry.chemical_element Sulfuric acid Hydrochloric acid Zinc Analytical Chemistry Metal chemistry.chemical_compound chemistry visual_art Reagent visual_art.visual_art_medium Nuclear chemistry
Zdroj:	Analytical Chemistry. 35:991-995
ISSN:	1520-6882 0003-2700
Popis:	Di-n-butyl phosphorothioic acid (5 w./v.% in CCl/sub 4/) was evaluated as a reagent for extracting metal ions from aqueous solutions of HCl or H/sub 2/ SO/sub 4/. The results are presented in two periodic table type charts as plots of log distribution ratio (D) vs. log STAH/sup +/!. Of 32 metal ions studied, 18 extracted in significant amounts. In general, metal ions that form insoluble sulfides have the highest D. The relative order of extraction of 11 metal di-n- butyl phosphorothioate complexes was determined. The effect of di-n-butyl phosphorothioic acid concentration on the D values for Ag/sup +/, Hg/sup 2+/, Zn/ sup 2+/ and In/sup 3+/ was investigated. The influence of various organic solvents on the D values for Hg/sup 2+/ and Zn/sup 2+/ was studied. The limits of extraction for Ag/sup +/, Hg/sup 2+/, and Pd/sup 2+/ were in the parts per billion range. The nature of the zinc di-n-butyl phosphorothioate complex was investigated. (auth)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2b60aa75aa52c7b7566a6274805228f3 https://doi.org/10.1021/ac60201a022 Zobrazit plný text záznamu