反应详情

When the pH value of the solution is near 8.5 after equilibrium is reached, the reached shown in the formula 2 proceeds until all of the calcium hydrogen phosphate convert into hydroxyapatite while the pH is maintained at near 8.5. The H3PO4 formed by the reaction comes to solution-equilibrium with the disodium hydrogen phosphate and citric acid during kneading. If the pH is still maintained at near 8.5, the reaction of the formula 4 also proceeds and the tetracalcium phosphate converts into hydroxyapatite. The Ca(OH)2 by product of this reaction comes to solution-equilibrium with H3PO4 produced from calcium hydrogen phosphate and disodium hydrogen phosphate and citric acid in kneading solutions, and the reaction shown as the formulae 7 and 8 proceeds:

1. temperatureIf the pH is still maintained at near 8.5