Composition and Solubility Product of a Synthetic Calcium Hydroxyapatite

1995 ◽  
pp. 271-282
Author(s):  
M. Markovic ◽  
B. O. Fowler ◽  
M. S. Tung ◽  
E. S. Lagergren
Keyword(s):  
Solubility Product ◽  
Calcium Hydroxyapatite

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 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.

Fracture Toughness of Calcium Hydroxyapatite and Spinel at Different Humidities and Loading Rates

2001 ◽  
Vol 206-213 ◽  
pp. 1599-1602
Author(s):  
N.J. van der Laag ◽  
A.J.M. van Dijk ◽  
L.J.M.G. Dortmans ◽  
G. de With
Keyword(s):  
Fracture Toughness ◽  
Calcium Hydroxyapatite ◽  
Loading Rates

Solubility product and the silver-ammonia halides.

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

The importance of formation of hydroxyl ions by dissociation of trapped water molecules for growth of calcium hydroxyapatite crystals

1998 ◽  
Vol 186 (1-2) ◽  
pp. 275-282 ◽  
Author(s):  
Jørgen Christoffersen ◽  
Jesper Dohrup ◽  
Margaret R Christoffersen
Keyword(s):  
Calcium Hydroxyapatite ◽  
Water Molecules ◽  
Hydroxyapatite Crystals

Photodecomposition of surfactants using Ti(IV)-doped calcium hydroxyapatite particles

2017 ◽  
Vol 295 (6) ◽  
pp. 1079-1087 ◽  
Author(s):  
Kazuhiko Kandori ◽  
Yuto Yamaguchi ◽  
Masato Wakamura
Keyword(s):  
Calcium 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.

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