The Solubility of Octacalcium Phosphate at 37°C in the System Ca(OH)2-H 3PO4-KNO3-H2O
- 1 March 1983
- journal article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 62 (3) , 398-400
- https://doi.org/10.1177/00220345830620031901
Abstract
The solubility product of octacalcium phosphate [Ca4H(PO4)3 · 2.5H 2O] has been determined in the system Ca(OH)2-H3PO 4KNO3-H2O at 37°C in experiments involving a range of hydrodynamics, ionic strength, and equilibration time. A value of pK so= 49.3 ± 0.2 was obtained for three different solid preparations by considering activity coefficients and ion-pair corrections.Keywords
This publication has 9 references indexed in Scilit:
- Solubility of Ca5{P04)3OH in the System Ca{OH)2-H3P04-H20 at 5, 15, 25, and 37 °CJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1977
- Ionic Concentrations in Calcium Phosphate Solutions. I. Solutions Saturated with Respect to Brushite or Tetracalcium Monohydrogen Phosphate at 37 degrees C.Acta Chemica Scandinavica, 1970
- Complexes in calcium phosphate solutionsThe Journal of Physical Chemistry, 1968
- Octacalcium Phosphate and Hydroxyapatite: Crystal Structure of Octacalcium PhosphateNature, 1962
- Stability of Dicalcium Phosphate Dihydrate in Aqueous Solutions and Solubility of Octocalcium PhosphateSoil Science Society of America Journal, 1960
- CRYSTALLOGRAPHY OF OCTACALCIUM PHOSPHATEJournal of the American Chemical Society, 1957
- 546. The systems zinc oxide–phosphoric oxide–water and manganous oxide–phosphoric oxide–water at temperatures between 25° and 100°Journal of the Chemical Society, 1950
- Values of the Constants in the Debye—Hückel Equation for Activity Coefficients1Journal of the American Chemical Society, 1943
- pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees CJournal of Research of the National Bureau of Standards, 1943