Di-butyl phosphate

Many organic reagents have been used successfully in Pu separation processes. The reagents include tri- -butyl phosphate (TBP) methyl isobutyl ketone thenoyl ttifluoroacetone (TTA) ethers, eg, diethyl ether, di- -butyl ether, tetraethylene glycol dibutyl ether trdaurylamine (TT,A) trioctylamine (TOA) di- -butyl phosphate (DBP) hexyl-di(2-ethylhexyl) phosphate (HDEHP) and many others. Of these, TBP is by far the most widely used (30,95). 

Synonyms Dibutyl hydrogen phosphate di- -butyl phosphate... 

Tetra-n-butylammonium di-r-butyl phosphate, [(CH3)3CO]2PON[C4Hg-n]4 (1). Mol. wt. 451.7, m.p. 108-110°. The salt is prepared by reaction of potassium di-(-butyl phosphate with tetra-n-butylammonium hydrogen sulfate in aqueous NaOH-CHjCU (96% yield). 

Whyman, 1970 Chapman et al, 1971). Other surfactants such as Triton X-114 have also been investigated. Anderson and McClure (1973) report a formulation of Triton X-114 in xylene which will accept up to 30% (v/v) aqueous sample and provides up to 47% efficiency for tritium. Another scintillation cocktail dubbed "Plasmasol" is a mixture of xylene, Triton X-100 and mono- and di-butyl phosphate (Wiegman et al, 1975). As the name Plasmasol suggests, it was designed for use with aqueous solutions containing soluble protein and is especially suited for radioimmunoassay. 

Ho, D., Corrosion Inhibition Effectiveness of Green Cerinm-organo Compounds Cerium Salicylate and Cerium Di-butyl Phosphate on AA2024 T3 in Both Aqueous and Epoxy Coating Environments, in Materials Engineering. 2007, Monash University Melbourne. 

New GC and GC-MS methods have been reported for simultaneous determinations of organophosphorus flame retardants in textiles, including a GC method combined with microwave-assisted extraction, and a GC-MS method following ultrasonic extraction, also a phosphate-based flame retardant in textiles by GC-MS, ° and in styrene-based polymers from waste electrical equipment by both GC (NP detector) and GC-MS. ° The gas chromatographic retentions of allq l phosphates on ionic liquid stationary phases have been studied, as well as a comparative study on the determination of di- -butyl phosphate in spent nuclear solvents by both gas- (GC) and ion chromatography (IC) methods/ ... 

Successful strategies for generating complexes of the di(terf-butyl)phosphate ligand primarily focus on the use of H0P(0)(0 Bu)2 as a reagent. As with the related siloxide species, all synthetic manipulations must be performed under inert conditions to avoid hydrolysis of the M - O - P linkages. Complexes of the - 02P(0 Bu)2 ligand are useful precursors to M/P/0 oxide materials. 

The following examples describing the thermolytic behavior of di(ferf-butyl)phosphate complexes serve to demonstrate the utihty of the TMP approach for synthesis of various phosphate materials. 

Di-t-butyl phosphate complexes of zinc were synthesized as precursors for ceramic material formation. A tetrameric zinc complex was characterized from the treatment of zinc acetate with the phosphate resulting in a compound with a bridging oxo at the center, [Zn4(/i4-0)(di-t-butyl phosphate)6]. In the presence of auxiliary donor ligands such as imidazole or ethylenediamine, monomeric complexes are formed, [Zn(di-t-butyl phosphate)2(imidazole)4]. It is also possible to convert the tetramer into the monomer by treating with a large excess of imidazole.41... 

Various organic extractants may be used, including butyl and amyl alcohols, di-isopropyl ether, tri-n-butyl phosphate, and tri-2-ethylhexyl phosphate. The fluoride remains with the... 

For the preparation of coordination polymers (see above) by rearrangement reactions of di-tert-butyl phosphate complexes containing the M4(//4-0) core (Fig. 4) in the presence of an acid or a base [98, 99] (Scheme 4)... 

Methyl-lH-imidazol-l-yl group, present in a side chain of perhydro-pyrido[2,l-c][l,4]oxazin-6-one skeleton was quaternized by reacting with chloromethyl di-ferf-butyl phosphate in the presence of Nal and Hiining s base in DME at 80 °C for 2 h, followed by treatment TFA in CHCI3 to give methylphosphonic acid derivative (08WOP2008/013213). 

Chart 12. Complexes of Di(ferf-butyl) Phosphate with Aluminum... 

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