01893nas a2200241   4500008004100000022001400041245008600055210006900141260008900210300001200299490000700311520104800318653001601366653001901382653001501401653002301416653001401439100002101453700002001474700002301494700002301517856011101540       2008                        eng d  a0971-457X00aRapid extraction and separation of indium(III) with a high molecular weight amine0 aRapid extraction and separation of indiumIII with a high molecul  aDR K S KRISHNAN MARG, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATIONcMAY  a291-2970 v153 a<p>The liquid-liquid extraction of indium(III) from sodium succinate media using n-octylaniline in toluene as an extractant was studied. Quantitative extraction of indium(III) was observed in the range of 0.004-0.0075 M sodium succinate at pH 3.8-6.0 with 4% n-octylaniline in toluene. Indium(III) was completely stripped from the metal loaded organic phase of the extractant with water and determined complexometrically. The stoichiometry of the extracted species was determined on the basis of;slope analysis. The extraction was found to proceed by a ion-pair mechanism with the extracted species being [RNH3+In(succinate)(2)(-)](org). Separation of indium(III) was carried out from some associated metals like Tl(I), Mg(II), Ni(II), Cu(II), Zn(II),. Cd(II), Hg(II), Pb(II), GC(IV), Sb(III), Bi(III). The selectivity of the extraction of indium(III) can also be achieved by use of a suitable masking agent for estimation and determination from the synthetic mixture corresponding to alloy to show the practical utility of the extractant.</p>10aIndium(III)10an-octylaniline10aSeparation10asolvent extraction10asuccinate1 aShilmkar, T., N.1 aKolekar, S., S.1 aWadgaonkar, P., P.1 aAnuse, Mansing, A.  uhttps://library.ncl.res.in/content/rapid-extraction-and-separation-indiumiii-high-molecular-weight-amine-002178nas a2200229   4500008004100000022001400041245013100055210006900186260008800255300001200343490000700355520127800362653001001640653002901650653002001679653002301699653001801722100002501740700002801765700002301793856013201816       2008                        eng d  a0352-513900aRapid liquid-liquid extraction of thallium(III) from succinate media with 2-octylaminopyirdine in chloroform as the extractant0 aRapid liquidliquid extraction of thalliumIII from succinate medi  aKARNEGIJEVA 4, PO BOX 462, YU-11001 BELGRADE, YUGOSLAVIAbSERBIAN CHEMICAL SOCcJAN  a435-4510 v733 a<p>A simple solvent extraction study of thallium(III) was conducted. Selective and quantitative extraction of thallium(III) by 2-octylaminopyridine (2-OAP) in chloroform occurred from aqueous sodium succinate medium (0.0075 M) at pH 3.0. Thallium(III) was back extracted with acetate buffer (pH 4.63). The effect of the concentration of succinate and 2-OAP, the role of various diluents, stripping agents, loading capacity of 2-OAP, equilibrium time and aqueous:organic volume ratio on the extraction of thallium(III) was studied. The stoichiometry of the extracted species was determined based on the slope analysis method and found to be 1: 2: 1 (metal: acid: extractant). The temperature dependence of the extraction equilibrium constant was also examined to estimate the apparent thermodynamic functions Delta H, Delta G and Delta S for the extraction reaction. The method is free from interference of a large number of cations and anions. The method was used for the selective extraction of thallium(III) from its binary mixture with Zn(II), Cd(II), Hg(II), Bi(ill), Pb(II), Se(IV), Te(IV), Sb(III), Ga(III), In(III), AI(III), TI(I) and Fe(III). The proposed method was applied to the synthetic mixtures and alloys. It is simple, selective, rapid and eco-friendly.</p>10a2-OAP10aliquid-liquid extraction10asuccinate media10aTemperature effect10athallium(III)1 aMahamuni, Sandip, V.1 aWadgaonkar, Prakash, P.1 aAnuse, Mansing, A.  uhttps://library.ncl.res.in/content/rapid-liquid-liquid-extraction-thalliumiii-succinate-media-2-octylaminopyirdine-chloroform-0