Mono-2-ethylhexyl 2-ethylhexylphosphonate

Correlation between composition and properties of phosphate ester surfactants was exemplified by octyl phosphate with an optimum of foam inhibition and surfactant properties [301]. In separation and concentration of rare earth metals by liquid surfactant membranes 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester was used as carrier [302]. [Pg.616]

Ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPA) Carhoxylic acid-toluene Rare earth... [Pg.847]

Solvent extraction of Fe(III) with calix(6)arene carboxylate derivative followed by spectrophotometric determination with thiocyanate was examined [1]. The developed method was recommended for determination of Fe(III) in samples containing Al, Mn(II), Mo(VI) and V(V). The extraction of Fe(III) with 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester followed by the determination with thiocyanate was employed to determine Fe in pharmaceuticals, metal and ores [2]. Solvent extraction separation of iron(III) with Cyanex 302 prior to the detection as the thiocyanate complex was applied to determine Fe(III) in multicomponent mixtures and ores, alloys and pharmaceuticals [3]. [Pg.497]

An efficient UF recovery of Am from its low-concentration solutions can be achieved using micellar solution of Tergitol + 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (H2A2). Almost complete recovery of Am(III) is accomplished using SDS micellar solution at and above pH 3. Total back extraction of Am(lll) from micellar pseudophase is achieved by adjusting the acidity of metal-loaded... [Pg.717]

Phosphonic acid, (2-ethylhexyl)-, mono (2-ethylhexyl) ester. See 2-Ethylhexyl 2-ethylhexylphosphonate Phosphonic acid, (hexahydro-2H-azepin-2-... [Pg.3344]

Rare earth elements have been enriched into a stationary phase composed of toluene including 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPA) from 1 L of aqueous solution and eluted with a stepwise pH gradient. As many elements remained in the column head because of their high partition coefficients to the stationary phase, they could be eluted with a mobile phase and also separated from each other. [Pg.1208]

Organophosphorus extractants such as di(2-ethylhexyl)-phosphoric acid (DEHPA), 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPA), iV-benzoyl-A-phenyUiy-droxylamine (BPHA), and tetraoctylethylenediamine (TOEDA) are often used due to their solubility properties in the stationary organic phase. ... [Pg.1457]

A proton dissociation-type organophosphorus extractant such as 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (PC-88A) in the ILs ([Cnmim][Tf2N], n = 8 12) showed the same extraction mechanism as in an organic solvent as follows [11] ... [Pg.76]

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