dc.creator | Janaćković, Đorđe | |
dc.creator | Janković, Ivana A. | |
dc.creator | Petrović, R. | |
dc.creator | Kostić-Gvozdenović, Ljiljana | |
dc.creator | Milonjić, Slobodan K. | |
dc.creator | Uskoković, Dragan | |
dc.date.accessioned | 2021-03-10T10:05:21Z | |
dc.date.available | 2021-03-10T10:05:21Z | |
dc.date.issued | 2003 | |
dc.identifier.issn | 1013-9826 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/507 | |
dc.description.abstract | In this paper surface properties of calcium-hydroxyapatite, synthesized by modified hydrothermal reaction of urea and Ca(EDTA)(2-) in phosphate solutions, as well as the dependence of calcium hydroxyapatite dispersion stability on pH were determined. The specific surface area of calcium-hydroxyapatite was experimentally found to be 67 m(2)/g. The point of zero charge (PZC) of indifferent KCl electrolyte of 6.8 +/- 0.1 was determined by the batch equilibration method. From the dependence of surface charge density on pH and electrolyte concentration, the intrinsic equilibrium constant of surface groups p K-a2(int) was determined to be 8.3 +/- 0.1, while p K-a1(int) calculated from the pK(a2)(int) and point of zero charge values, is 5.3 +/- 0.1. Hydroxyapatite suspension stability was investigated, in the pH range from 7 to 12, it was revealed that the most stable dispersion at pH 10. | en |
dc.publisher | Proceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine | |
dc.rights | restrictedAccess | |
dc.source | Key Engineering Materials | |
dc.subject | hydroxyapatite | en |
dc.subject | surface properties | en |
dc.subject | hydrothermal decomposition | en |
dc.subject | urea | en |
dc.subject | calcium-EDTA chelates | en |
dc.title | Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 440 | |
dc.citation.other | 240-242: 437-440 | |
dc.citation.rank | M22 | |
dc.citation.spage | 437 | |
dc.citation.volume | 240-242 | |
dc.identifier.pmid | | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_technorep_507 | |
dc.identifier.scopus | 2-s2.0-0037260625 | |
dc.identifier.wos | 000182706600098 | |
dc.type.version | publishedVersion | |