Properties of Calcium Phosphate Powder Synthesized from Calcium Chloride and Potassium Pyrophosphate

Safronova, T.V.; Safronova, T.V.; Putlyaev, V.I.; Knot’ko, A.V.; Shatalova, T.B.; Artemov, M.V.; Filippov, Y.Y.

Авторы: Safronova T.V., Safronova T.V., Putlyaev V.I., Knot’ko A.V., Shatalova T.B., Artemov M.V., Filippov Ya Yu
Журнал: Inorganic Materials: Applied Research
Том: 11
Номер: 1
Год издания: 2020
Первая страница: 44
Последняя страница: 49
DOI: 10.1134/S2075113320010293
Аннотация: The powder of hydrated calcium pyrophosphate Ca2P2O7 ⋅ xH2O containing potassium chloride KCl as a by-product was synthesized at room temperature from 0.5 M aqueous solutions of calcium chloride CaCl2 and potassium pyrophosphate K4P2O7 at a ratio of Ca/P = 1. The particle size of the powder with a shape close to isometric was 100–200 nm after synthesis and 0.5–1.0 μm after heat treatment at 700°C. Upon heating, KCl was retained in the powder up to 600°C, participating in the formation of new phases: potassium/calcium double pyrophosphate K2CaP2O7 and chlorapatite Ca3(PO4)3Cl in the range of 500–700°C and then K-substituted tricalcium phosphate Ca10K(PO4)7 at 800°C. The hydrated calcium pyrophosphate powder containing KCl as a by-product can be recommended for the manufacture of biocompatible multiphase ceramic materials, and the powder after heat treatment at 800°C can be used to obtain biocompatible materials using chemical bonding reactions. Keywords: potassium pyrophosphate, calcium chloride, calcium pyrophosphate, potassium chloride, synthesis, heterophase reaction, potassium/calcium double pyrophosphate, calcium chlorapatite, potassium-substituted tricalcium phosphate
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Properties of Calcium Phosphate Powder Synthesized from Calcium Chloride and Potassium Pyrophosphateстатья

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