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Information × Registration Number 0214U002684, 0113U001530 , R & D reports Title Polyoxometalates of elements of V and VI groups in solutions, solid phase and medical compositions with hydroxyapatite popup.stage_title Head Rozantsev Georgy Mihailovich, Доктор хімічних наук Registration Date 24-01-2014 Organization Donetsk National University popup.description2 The conditions of synthesis of sodium heteropolydecatungstodysproziate ( III ) Na9[Dy(W5O18)2]·30H2O. Results of IR-spectroscopy have shown the affiliation of the anion in the composition of the synthesized salt to the structure of the Peacock - Weekly . The conditions for the synthesis gadolinium heteropolyhexatungstonikelate ( II ) Gd4 [Ni (OH) 6W6O18] 3 · nH2O (n = 42 , 45 ) for the straight reaction in the system Gd3 + - Ni2 + - WO42-- H + - H2O ((Gd3 +): (Ni2 +): WO42-): (H +) = 1,33: 1: 6: 6 ) and the exchange reaction of stoichiometric quantities , and Gd3 + Na4 [Ni (OH) 6W6O18] · 16H2O.Results of IR-spectroscopic analysis have shown the affiliation of the anions in the salts to the structure of Anderson- Evans [Ni(OH)6W6O18]4- . SEM surface morphology was used to investigate obtained salts, it has confirmed single-phase of salts. DTA method was used to study the thermal decomposition of salts , and thermolysis products were determined by XRD. pH - potentiometric research of systems Na2WO4 - HCl - NaCl - DMF (0-50 about .%) - H2O at 25,0 ± 0,1 C was conducted, models, involving particles formed in water- dimethylformamide solution were proposed in the dependance of the content of DMF and concentration equilibrium constants of reactions of formation IPTA were calculated; distribution diagrams of IPTA in aqueous dimethylformamide solution were built depending on the content of DMF, the optimal decatungstates synthesis conditions were determined; chemical, IR-spectroscopy and differential thermal analysis of the synthesized compounds were done and helped to identify the compounds [(C4H9)4N)] N3W10O32·15C3H7ON, (C8H11NH)4W10O32·3C3H7ON, [(CH3)4N)]4N3W10O32·4C3H7ON. Product Description popup.authors Іванцова Елла Сергіївна Білоусова Катерина Євгенівна Гумерова Надія Ісмагілівна Зайцева Надія Миколаївна Заславська Людмила Володимирівна Мельник Наталя Олександрівна Пойманова Олена Юріївна Радіо Сергій Вікторович Хаустов Данило Володимирович popup.nrat_date 2020-04-02 Close