Synthesis, transport and ionophore properties of α,ω- biphosphorylated azapodands: V. acid-base properties of new phosphorylated azapodands and α,ω-diamines and their participation in the membrane transport of I-III groups metal ions

Acid-base properties of newly and previously synthesized phosphorylated azapodands and α,ω- diamines and their amine precursors were studied. We found that they differ in the same range as has been found previously for the other aminophosphoryl compounds. The investigation of the processes of passive membrane ion transport of a series of metals of I-III groups by these reactants showed with all diphosphoryl diamines higher values of the transfer flow of the ions Sc(III), Nd(III), and Sm(III), than the ions of alkali and alkaline earth metals. Under the conditions of active membrane transport the azapodand IV exhibits high efficiency in the ion transport of Sr(II) and Ba(II), while diphosphoryldiamine III exhibits effective transport of Nd(III) ions. The factors that determine the efficiency and selectivity of the membrane extraction of the I-III groups metal ions by these diphosphoryl diamines are discussed. © Pleiades Publishing, Ltd., 2012

Revisiting the application of the Abc system in the packaging industry companies

© 2014, Mediterranean Center of Social and Educational Research. All rights reserved. This article discusses issues related to the characteristics of the application of cost systems by activities at the packaging industry companies. Special attention is paid to the ability of ABC accounting system usage and its practical adaptation at the one of the fastest growing packaging market sectors – the flexible packaging production. The paper presents a method of presentation of information for the purposes of managerial decision making in terms of activity-based accounting method

Synthesis, transport, and ionophoric properties of α,ω- biphosphorylated azapodands: VI. New cesium-selective electrodes based on the phosphorylated azapodands

New cesium-selective electrodes containing as an electrode active substance biphosphorylated azapodands: 1,8-bis(dioctylphosphorylmethylamino)-3,6- dioxaoctane (I), 1,10-bis(dioctylphosphorylmethylamino)-4,7-dioxadecane (II), and 1-(dioctylphosphorylmethylamino)-10-[(dioctylphosphorylmethyl)benzylamino]- 4,7-dioxadecane (III) were developed, and the composition of the membranes of these electrodes was optimized. The high selectivity of electrodes based on the ionophores I-III toward Cs(I) ion, which can be determined on the background of the majority of the other ions of alkali and alkaline earth metals, including the close to it by size Rb(I) ion, was established. © 2013 Pleiades Publishing, Ltd

Synthesis, transport, and ionophore properties of α,ω- bisphosphorylated azapodands: IX. Extraction of metal ions with quasiliquid emulsions on the basis of N,N′-bis(dioctylphosphorylmethyl)-1,8-diamino-3, 6-dioxaoctane and acidic components

Processes of extraction of ions of the I-IV group metals from acidic water solutions with paraffin quasiliquid emulsions containing neutral phosphorylazapodand, bis(dioctylphosphorylmethyl)-1,8-diamino-3,6-dioxaoctane I, and acidic components, bispentadecylphosphoric II and hexadecylsulfonic acid III is studied. High effectiveness of extraction of metal ions with these extraction compositions is established. It significantly exceeds the effectiveness of liquid extraction in the same systems, especially of ions of the II group metals. The extraction of three-charged ions proceeds more effectively by the mixture of organophosphorus reagents I and II, than with the composition consisting of azapodand I and organosulfur acid III. © 2013 Pleiades Publishing, Ltd

Synthesis of the azapodands with phosphoryl terminal groups

© 2016 Taylor & Francis Group, LLC.New lipophilic phosphorylated azapodands with different substituents at the nitrogen atom were synthesized via the Kabachnik–Fields reaction in the three-component system: di-p-tolylphosphinous acid– formaldehyde–1,8-diamino-3,6-dioxaoctane. The reaction was carried out in toluene or acetonitrile media, with p-toluenesulfonic acid acting as a catalyst

Synthesis of lipophilic N-phosphorylmethylated amino acids and their membrane-transport properties towards some organic acids

© 2016 Taylor & Francis Group, LLC.One-pot procedureswere developed for the synthesis of lipophilic N-(dialkylphosphorylmethyl) derivatives of natural amino acids with high yields from dioctyloxide, formaldehyde, and an amino acid in the presence of amino acid hydrochloride.Membrane transport properties of the new phosphorylated amino acids towards polyfunctional carboxylic acidswere studied. Itwas found that N,N-bis[(dioctylphosphoryl)methyl]- β-alanine is a selective extractant for glutaric acid

Membrane extraction of metal ions by aminophosphoryl reagents in the active transport conditions

The process of membrane extraction of rare earth ions, Nd(III), Sc(III), and Sm(III), and also the accompanying them in the natural raw material ions Al(III) and Mg(II), by N,N-bis(dihexylphosphorylmethyl)octylamine (BPA) was investigated under the conditions of active membrane transport, and its high efficiency and selectivity was demonstrated with respect to the two first rare earth metals. The influence of principal parameters of the three-phase extraction process, including the nitrate ion concentration, the releasing aqueous phase acidity, the extracting agent concentration in the membrane, and the nature of the membrane solvent, on the membrane permeability, characterizing the efficiency and selectivity of membrane transporters, was established. Comparison of the membrane permeability in the process of transmembrane transport of Nd(III) and Sc(III) with BPA and monophosphorylated amines showed a significant advantage of the biphosphorylated amine extractant. © 2013 Pleiades Publishing, Ltd

Membrane extraction of alkaline earth metal by phosphorylated azapodands

© 2016 Taylor & Francis Group, LLC.Membrane transport properties of the new lipophilic phosphorylated azapodands toward Сa(II), Ва (II), Mg(II), and Sr(II) were studied. The investigation of the processes of passive membrane ion transport showed the high values of the transfer flow of the alkaline earth metals’ ions with all carriers. It was found that N,N’-bis(di-p-tolylphosphorylmethyl)-1,8-diamino-3,6-dioxaoctane (I) is the most effective carrier among all compounds studied

Synthesis, transport, and ionophore properties of α,ω- biphosphorylated azapodands: VIII. Solvent extraction of the metal ions with N,N′-bis(dioctylphosphorylmethyl)-1,8-diamino-3,6-dioxaoctane

Liquid extraction from the aqueous solutions of perchloric acid with neutral azapodand extractant N,N′-bis(dioctylphosphorylmethyl)-1,8- diamino-3,6-dioxaoctane has been highly efficient in the cases of uranyl ions and some metals of groups II and III. To estimate the synergic effect of organophosphorus extractants, the neutral extractant was applied in the mixture with an acidic component, bis(pentadecyl)phosphoric acid. The synergic effect has exclusively been observed in the extraction of zinc and cadmium ions. © 2013 Pleiades Publishing, Ltd

Synthesis, Transport, and Ionophoric Properties of α,ω-Diphosphorylated Azapodands: XI. Membrane Transport of Metals by Phosphorylated Diazapodands

© 2018, Pleiades Publishing, Ltd. The membrane transport of rare-earth metals and scandium by new diphosphorylated diazapodands was studied. It was found that the introduction of butyl groups and an additional phosphoryl group on the nitrogen atoms of the terminal aminomethylphosphinoyl groups of azapodands decreases the efficiency of transport of rare-earth metals and increases the selectivity to scandium ion