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Article

Calcium Phosphate Powder Synthesized from Calcium Acetate and Ammonium Hydrophosphate for Bioceramics Application

by
Tatiana Safronova
1,2,*,
Valery Putlayev
1,2,
Yaroslav Filippov
2,3,
Tatiana Shatalova
1,2,
Evgeny Karpushkin
1,
Dmitrii Larionov
2,
Gilyana Kazakova
2 and
Yury Shakhtarin
1
1
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1, Moscow 119991, Russia
2
Materials Science Department, Lomonosov Moscow State University, Leninskie Gory, 1, Moscow 119991, Russia
3
Research Institute of Mechanics, Lomonosov Moscow State University, Michurinskii pr., 1, Moscow 119192, Russia
*
Author to whom correspondence should be addressed.
Ceramics 2018, 1(2), 375-392; https://doi.org/10.3390/ceramics1020030
Submission received: 25 October 2018 / Revised: 7 December 2018 / Accepted: 11 December 2018 / Published: 15 December 2018
(This article belongs to the Special Issue Ceramics for Biomedical Applications)
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Abstract

Calcium phosphate powder was synthesized at room temperature from aqueous solutions of ammonium hydrophosphate and calcium acetate without pH adjusting at constant Ca/P molar ratio 1.5. Phase composition of the as-synthesized powder depended on the precursors concentration: At 2.0 M of calcium acetate in the starting solution, poorly crystallized hydroxyapatite was formed, 0.125 M solution of calcium acetate afforded brushite, and the powders synthesized from 0.25–1.0 M calcium acetate solutions were mixtures of the mentioned phases. Firing at 1100 °C led to complete elimination of the reaction by-products, yet the phase composition of the annealed compacted samples was the following: When 2.0 M solution of calcium acetate was used, the obtained ceramics consisted of β-Ca3(PO4)2, whereas at 0.125 to 1.0 M of calcium acetate, the ceramics was a mixture of β-Ca3(PO4)2 and β-Ca2P2O7. Synthesized calcium phosphate powders can be used as the powdered precursors for biocompatible bioresorbable composite ceramics production.
Keywords: hydroxyapatite; brushite; precipitation; tricalcium phosphate; calcium pyrophosphate; ceramic composite hydroxyapatite; brushite; precipitation; tricalcium phosphate; calcium pyrophosphate; ceramic composite

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MDPI and ACS Style

Safronova, T.; Putlayev, V.; Filippov, Y.; Shatalova, T.; Karpushkin, E.; Larionov, D.; Kazakova, G.; Shakhtarin, Y. Calcium Phosphate Powder Synthesized from Calcium Acetate and Ammonium Hydrophosphate for Bioceramics Application. Ceramics 2018, 1, 375-392. https://doi.org/10.3390/ceramics1020030

AMA Style

Safronova T, Putlayev V, Filippov Y, Shatalova T, Karpushkin E, Larionov D, Kazakova G, Shakhtarin Y. Calcium Phosphate Powder Synthesized from Calcium Acetate and Ammonium Hydrophosphate for Bioceramics Application. Ceramics. 2018; 1(2):375-392. https://doi.org/10.3390/ceramics1020030

Chicago/Turabian Style

Safronova, Tatiana, Valery Putlayev, Yaroslav Filippov, Tatiana Shatalova, Evgeny Karpushkin, Dmitrii Larionov, Gilyana Kazakova, and Yury Shakhtarin. 2018. "Calcium Phosphate Powder Synthesized from Calcium Acetate and Ammonium Hydrophosphate for Bioceramics Application" Ceramics 1, no. 2: 375-392. https://doi.org/10.3390/ceramics1020030

APA Style

Safronova, T., Putlayev, V., Filippov, Y., Shatalova, T., Karpushkin, E., Larionov, D., Kazakova, G., & Shakhtarin, Y. (2018). Calcium Phosphate Powder Synthesized from Calcium Acetate and Ammonium Hydrophosphate for Bioceramics Application. Ceramics, 1(2), 375-392. https://doi.org/10.3390/ceramics1020030

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