Synthetic hydroxyapatite-solubility product and stoichiometry of dissolution

1978 ◽  
Vol 23 (5) ◽  
pp. 329-336 ◽  
Author(s):  
L.C. Bell ◽  
H. Mika ◽  
B.J. Kruger
Keyword(s):  
Solubility Product ◽  
Synthetic Hydroxyapatite

Microstructural comparison of synthetic bioceramics with natural bioceramics

1991 ◽  
Vol 49 ◽  
pp. 38-39
Author(s):  
Shulin Wen ◽  
Jingwei Feng ◽  
A. Krajewski ◽  
A. Ravaglioli
Keyword(s):  
Recent Work ◽  
Human Body ◽  
Human Tissues ◽  
Main Constituent ◽  
Laboratory Furnace ◽  
Chinese Adult ◽  
Human Enamel ◽  
Biological Compatibility ◽  
Synthetic Hydroxyapatite ◽  
Synthetic Work

Hydroxyapatite bioceramics has attracted many material scientists as it is the main constituent of the bone and the teeth in human body. The synthesis of the bioceramics has been performed for years. Nowadays, the synthetic work is not only focused on the hydroapatite but also on the fluorapatite and chlorapatite bioceramics since later materials have also biological compatibility with human tissues; and they may also be very promising for clinic purpose. However, in comparison of the synthetic bioceramics with natural one on microstructure, a great differences were observed according to our previous results. We have investigated these differences further in this work since they are very important to appraise the synthetic bioceramics for their clinic application.The synthetic hydroxyapatite and chlorapatite were prepared according to A. Krajewski and A. Ravaglioli and their recent work. The briquettes from different hydroxyapatite or chlorapatite powders were fired in a laboratory furnace at the temperature of 900-1300°C. The samples of human enamel selected for the comparison with synthetic bioceramics were from Chinese adult teeth.

Revised aqueous solubility product constants and a simple laboratory synthesis of the Pb(II) hydroxycarbonates: Plumbonacrite and hydrocerussite

2017 ◽  
Vol 51 (4) ◽  
pp. 315-328
Author(s):  
Arturo Mendoza-Flores ◽  
Mario Villalobos ◽  
Teresa Pi-Puig ◽  
Nadia Valentina Martínez-Villegas
Keyword(s):  
Solubility Product ◽  
Aqueous Solubility ◽  
Laboratory Synthesis

scholarly journals Comparative Fixation of Calcium and Strontium by Synthetic Hydroxyapatite

1960 ◽  
Vol 235 (7) ◽  
pp. 2152-2156
Author(s):  
R.C. Likins ◽  
H.G. McCann ◽  
A.S. Posner ◽  
D.B. Scott
Keyword(s):  
Synthetic Hydroxyapatite

scholarly journals Solubility Product of Vanadinite Pb5(VO4)3Cl at 25 °C—A Comprehensive Approach to Incongruent Dissolution Modeling

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 135
Author(s):  
Justyna Topolska ◽  
Bartosz Puzio ◽  
Olaf Borkiewicz ◽  
Julia Sordyl ◽  
Maciej Manecki
Keyword(s):  
Nuclear Waste ◽  
Solubility Product ◽  
Geochemical Modeling ◽  
Incongruent Dissolution ◽  
Mineral Solubility ◽  
Actual Application ◽  
Universal Approach ◽  
Solubility Constant ◽  
First Time

Although vanadinite (Pb5(VO4)3Cl) occurs in abundance in various terrestrial geochemical systems of natural and anthropogenic origin and is seriously considered as a potential nuclear waste sequestering agent, its actual application is severely limited by a lack of understanding of its basic thermodynamic parameters. In this regard, the greatest challenge is posed by its incongruent dissolution, which is a pivotal hurdle for effective geochemical modeling. Our paper presents an universal approach for geochemical computing of systems undergoing incongruent dissolution which, along with unique, long-term experiments on vanadinites’ stability, allowed us to determine the mineral solubility constant. The dissolution experiments were carried out at pH = 3.5 for 12 years. Vanadinite has dissolved incongruently, continuously re-precipitating into chervetite (Pb2V2O7) with the two minerals remaining in mutual equilibrium until termination of the experiments. The empirically derived solubility constant Ksp,V,298 = 10–91.89 ± 0.05 of vanadinite was determined for the first time. The proposed modeling method is versatile and can be adopted to other mineral systems undergoing incongruent dissolution.

Solubility product and the silver-ammonia halides.

1947 ◽  
Vol 24 (5) ◽  
pp. 236 ◽  
Author(s):  
Kelso B. Morris
Keyword(s):  
Solubility Product

Removal of Cu from aqueous solutions by synthetic hydroxyapatite: EXAFS investigation

2008 ◽  
Vol 149 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Alessia Corami ◽  
Francesco D’Acapito ◽  
Silvano Mignardi ◽  
Vincenzo Ferrini
Keyword(s):  
Aqueous Solutions ◽  
Synthetic Hydroxyapatite

Solution Properties of Tetraalkylammonium Halide and Alkali-Metal Halide Ion Pairs. The Relationship Between Dissociation Constants and Solubility Products

1987 ◽  
Vol 40 (7) ◽  
pp. 1201 ◽  
Author(s):  
W Mizerski ◽  
MK Kalinowski
Keyword(s):  
Alkali Metal ◽  
Solubility Product ◽  
Dissociation Constants ◽  
Ion Pairs ◽  
Empirical Relation ◽  
Alkali Metal Halide ◽  
Alkali Metal Cations ◽  
Solubility Products ◽  
The Relationship ◽  
Dissociation Constant Kd

An empirical relation describing the effect of solvent on the dissociation constant ( Kd ) of ion pairs is described. An equation of the form pKd = apKso + bD-1 + c ( Kso and D stand for the solubility product of a given salt and for the electric permittivity of a solvent, respectively) has been tested with 13 sets of experimental data for salts containing tetraalkylammonium and alkali-metal cations. A successful correlation was obtained in 100% of the cases considered.

The Solubility Product of Barium Chromate at Various Ionic Strengths

1943 ◽  
Vol 65 (5) ◽  
pp. 971-973 ◽  
Author(s):  
George L. Beyer ◽  
William Rieman
Keyword(s):  
Solubility Product ◽  
Barium Chromate

A Novelty of Synthetic Hydroxyapatite from Cockle Shell and Characterization

2015 ◽  
Vol 1087 ◽  
pp. 429-433 ◽  
Author(s):  
Rusnah Mustaffa ◽  
Mohd Reusmaazran Mohd Yusof ◽  
Yusof Abdullah
Keyword(s):  
Bone Graft ◽  
Bone Repair ◽  
Artificial Bone ◽  
Synthetic Bone ◽  
Potential Source ◽  
Mineral Constituent ◽  
Bone Graft Substitutes ◽  
Synthetic Hydroxyapatite ◽  
Anadara Granosa ◽  
Cockle Shell

In Malaysia recently, it was found that cockle shell (Anadara granosa) is a potential source of biomaterial for bone repair. It is the most abundant sea species cultured in Malaysia. A possible advantage of using cockle shell as a biomaterial is that they may act as an antilog of calcium carbonate. Malaysian Nuclear Agency took this challenge to develop synthetic bone graft from natural cockle shell. To date, the artificial bone graft substitutes developed from hydroxyapatite (Ca10(PO4)6(OH)2) a bio ceramic is similar to the mineral constituent of human bone. The structure and the composition of hydroxyapatite (HA) are similar to the mineral phase of bone and, its bioactivity and biocompatibility makes it a preferred bone graft.

Sign in / Sign up

Export Citation Format

Share Document