Liquid-Liquid Extraction of Zirconium(IV) with Mesityl Oxide.

Abstract

Sir : Mesityl oxide (4-methyl-3penten-2-one) has been used for the extraction of uranium (VI) (2). Extension of these studies to zirconium(IV) revealed that zirconium(IV) can be quantitatively extracted from solutions containing 4M nitric acid and 4M sodium nitrate. Zirconium (IV) is backextracted from the organic phase with water and is spectrophotometrically determined in the aqueous phase with alizarin. This provides the basis for the liquid-liquid extraction of zirconium (IV) at the milligram level. The

Nonferrous metallurgy. II. Zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, and tungsten

“…Alizarin red S was used by Schutte (475) for the determination of zirconium in South African granite and by Stern (518) in copperzirconium alloys. Khcpkar and Dhara (247) extracted zirconium into mesityl oxide, back-extracted it into water, and determined it with alizarin. Wood and Jones (586,587) used pyrocatechol violet following a TOPO extraction and Hibbits, Rosenberg, and Williams (198) used a cupferron precipitation, then a TOPO extraction followed by a pyrocatechol violet determination.…”

“…Concentration by extraction of their 8quinolinolates into chloroform or by anion exchange prior to spectrographic determination was proposed by Moro- I. Spectrophotometric Methods Reagent: Material (References) Xylenol orange: Ti, Nb, Ta, Mo, W (117)) Nb (132,207)) following extraction (359) Arsenazo III: Study of complexes (70); following TTA extraction (379); Hf (330); bronzes and Cu alloys ( 405)) steel and cast iron (468) Arsenazo: Study of complexes (378) Quinalizarinsulfonic acid: Silicate rocks (101) Alizarin red S: Granite (475)) Cu (518) Alizarin: Following extraction (247) Pyrocatechol violet: Following TOPO extraction (198,586,587)) following TTA extraction (562)) steel ( 291) Quercetin: Study of conditions ( 568)) Mg or Al (413) 8-Quinolinol: Mo ( 480)) Study of conditions and interferences (564) Thorin: W (527) 3" -sulfo -2",6" -dichloro -3,3' -dimethyl -4 -hydroxyfuchon -5,5'dicarboxylic acid: Study of conditions and interferences (44) Picramine R and Nitrosulfophenol S: Study of conditions (467) Naphthazarin and /3-hydronaphthazarin: Study of complexes (53) Chlorosulfophenol S: Fe(112) Fluotitanic acid-hydrogen peroxide: Study of conditions (149) 2,5-Dibromo-3,6-dihydroxyquinone: Study of complex (184) 2,6,7-Trihydroxy-9-methyl fluorone: Study of conditions (419) Nuclear fast red: Study of conditions (417) Pyrogallolsulf onephthalein: Study of complex (385) Gallein: Study of conditions and interferences (244) Review including reagents suitable for spectrophotometric determination (82) Arsenazo III: Iron and steel (232) Alizarin red S: Study of complex and interferences (459) 5-Dimethylamino-2-(2-thiazolylazo)phenol: Study of complex (334) 8-Quinolinol: Cr, Mo (271)) W ( 519)) water (346) 7-1 odo-8-quinolinol: Study of conditions and interferences (279) Xylenol orange: Study of conditions and interferences (72,…”