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Studies on the solubility of GaPO4 in phosphoric acid

Journal of Crystal Growth 245(3-4): 273-277

Autoren/Herausgeber: Barz RU
Grassl M
Gille P
Erschienen: 2002

The solubility of gallium orthophosphate (GaPO4) in 15 M phosphoric acid has been studied in the temperature range between 150degreesC and 250degreesC. The data were determined using an experimental set-up, which was especially designed for the purpose of dissolution as well as crystallization experiments. The measured values are discussed with respect to the question whether or not a considerable region of metastability exists. The temperature coefficient of the solubility has been found negative for temperatures up to about 250degreesC. (C) 2002 Elsevier Science B.V. All rights reserved.