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Information × Registration Number 0210U001456, 0107U000658 , R & D reports Title Phase Equilibrums in Water-saline Solutions of Polyethyleneglycols popup.stage_title Head Krasnoporova Alla, Registration Date 17-02-2010 Organization Kharkov National University named after V.N. Karazin popup.description2 The purpose of the work -study of the conditions of the forming the two-phase systems on base water solution of the polyethylene glycols of the different molecular weights and inorganic salts (the carbonate, sulphate, phosphate, thiocyanate) depending on concentrations of the salts, molecular weight of the polymer and pH solution, motivation of choice of the effective extractions systems for the selection and division of radioactive nuclides from the products of fissions.Research methods are implementation of work is carried out with the use of modern radioanalytical (Rentgenoradiometric fluorescent analysis, method of radio-active indicators) and spectral (IR?spectroscopy, atomic-absorption spectroscopy) methods.Influence of number oxethylic groups (-СН2ОСН2-) on salvations and complications properties polyethylene glycols is investigated; the relative contribution of various types of interspatial interactions to processes of dissolution and salvation is established.On the basis of data analysis of IR?spectroscopic researches, it is set that co-operation of salts with polyethyleneglycols results in destruction of complex associations of polyethyleneglycols.The studied conditions of the forming the two-phase systems on base water solution of the polyethylene glycols of the different molecular weights and inorganic salts. It is shown that on salting-out polyethylene glycol from solution affects the row a factor: position anion of salts abreast Gofmeystera, concentration to inorganic salt-salting-out, molecular weight polyethylene glycol and its concentration, acidity of the solution. Is studied distributing of radionuclides 137Cs, 90Sr і U(VI) between waters and polyethyleneglycols phases. Optimum terms are neat for the selection of 90Sr і U(VI) from waters solutions. Product Description popup.authors . Краснопьорова А. Єфімова Н. Андрющенко Т. Лебєдєва Л. Ситнік О. Уханьова М. Шеховцов С. Юхно Г. popup.nrat_date 2020-04-02 Close