|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
Synthesis of magnesium phosphates with Mg/P=1 ratio from ammonium hydrophosphate and various magnesium saltsтезисы доклада
- Авторы: Shevtsova O.A., Safronova T.V., Kazakova G.K.
- Сборник: Book of Abstracts XII International Conference on Chemistry for Young Scientists «Mendeleev 2021»
- Тезисы
- Год издания: 2021
- Место издания: St. Petersburg University
- Первая страница: 310
- Последняя страница: 310
- Аннотация: The aim of this work was to synthesize and study the properties of magnesium phosphate powders derived by interaction of aqueous solutions of various magnesium salts and dibasicammonium phosphate to produce resorbable ceramic materials.So a mixture of struvite MgNH₄PO₄.6H₂O and newberite MgHPO4.3H2O with different phase ratios was obtained from aqueous solutions of magnesium salts and dibasicammonium phosphate. It has also been found that the properties of synthesized powders was dependent on the receiving salt solution, i.e. sequence of solution adding. The ratio of the of struvite to newberite phases in case of addition of MgCl2 to (NH4)2HPO4 was 1:3; at the return sequence of solution addition ((NH4)2HPO4 to MgCl2), the ratio of struvite to newberite was 1:1. The ratio of the of struvite to newberite phases in case of addition of Mg(CH3COO)2 to (NH4)2HPO4 was 5:1; at the return sequence of solution addition (of (NH4)2HPO4 to Mg(CH3COO)2) the ratio of struvite to newberite was 8:3. When Mg(NO3)2 and (NH4)2HPO4 are merged, the same ratio of struvite to newberite was observed as1:2.It has been established that a powdered mixture of struvite and newberite during firing at temperature in the range 800 ̊C to 1200 ̊C formed a porous ceramic material based on the high temperature modification of magnesium pyrophosphate Mg2P2O7.Ceramic porous materials containing a biocompatible and bioresorbable phase of high temperature modification of magnesium pyrophosphate Mg2P2O7 can be used for creating bone implants and also as a filler in composite materials with a polymer or inorganic matrix.Acknowledgements. This work was supported by the Russian Foundation for Basic Research (project No 19-38-90274).
- Добавил в систему: Сафронова Татьяна Викторовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Shevtsova_Mendeleev2021_310.pdf | Shevtsova_Mendeleev2021_310.pdf | 1,1 МБ | 22 ноября 2021 [safronova] |