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Powder mixtures prepared under mechanical activation from ammonium phosphates and calcium and / or magnesium acetatesтезисы доклада
- Авторы: Smirnova N.V., 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: 317
- Последняя страница: 317
- Аннотация: That’s why the main purpose of our work was to synthesize and study the properties of powder mixtures prepared under mechanical activation from ammonium phosphates and calcium and / or magnesium acetates.In the case of the reaction between a mixture of calcium and magnesium acetates and ammonium dihydrogen phosphate (reactions 3 and 4), different Ca/Mg/P molar ratios were taken as 1/1/2, 2/1/3.According to XRD the only reaction between magnesium acetate and ammonium dihydrogen phosphate (reaction 1) took place during mechanical activation and phase of newberrite was detected. In the case of the reaction between ammonium dihydrogen phosphate calcium acetate and/or magnesium acetate the reaction took place partial (reactions 2, 3 and 4).According to thermal analysis, the change in mass for the reaction between calcium acetate and ammonium dihydrogen phosphate was 35%, in the case of magnesium acetate - 50%, the same result was obtained for calcium and magnesium acetates. After firing, the corresponding pyrophosphates were obtained (Ca2P2O7, Mg2P2O7, CaMgP2O7).Powder mixtures prepared under mechanical activation from ammonium phosphates and calcium and / or magnesium acetates can be used as powder precursors for bioceramics production.Acknowledgements. This work was supported by 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. | Smirnova_Mendeleev2021_317.pdf | Smirnova_Mendeleev2021_317.pdf | 1,1 МБ | 22 ноября 2021 [safronova] |