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Information × Registration Number 0211U007500, 0110U003465 , R & D reports Title Isopoly and Heteropoly Compounds of d- and f-Elements and Modified Bioactive Calcium hydroxyapatite for Medicine. popup.stage_title Head Rozantsev Georgy Mihailovich, Доктор хімічних наук Registration Date 31-05-2011 Organization Donetsk National University popup.description2 Study of the interactions in the systems "sodium tungstate - nitric acid - water" and "potassium hexaniobate - sodium tungstate - hydrochloric acid - water (Nb:W=2:4)" were proceeded by the methods of pH-potentiometry and mathematical modeling. Diagrams of distribution of individual isopoly anions of Nb(+5), W(+6) and mixed isopoly niobotungstate anions (IPNTA) were built. Concentration and thermodynamic constants of mixed IPNTA of 6-th row were calculated. New salts with IPNTA were synthesized and identified by elemental analysis and FTIR spectroscopy. The X-ray diffraction study of single crystals of cobalt (+2) paratungstate B and hydrogen strontium paratungstate B was carried out. Structural data on interatomic distances W-O, Sr-O, Co-O and the bond angles Sr-O-W, W-O-W, Co-O-W were obtained. The new compositions based on bioactive calcium hydroxyapatite modified with calcium paratungstate B were created, and can be used as therapeutic and medicinal agents in dentistry. Product Description popup.authors Білоусова Катерина Євгенівна Вавілова Світлана Михайлівна Заславська Людмила Володимирівна Радіо Сергій Вікторович popup.nrat_date 2020-04-02 Close