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Solubility of aluminum in the presence of hydroxide, fluoride, and sulfate

Water Supply Paper 1827-C

By:
and

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Abstract

The total concentration of aqueous dissolved species of aluminum that will be present in equilibrium with microcrystalline gibbsite at various levels of complexing ligand concentration are shown graphically. The graphs can be used to estimate aluminum solubility, at 25?C and 1 atmosphere total pressure, when the pH of the solution, its ionic strength, and the total sulfate and fluoride concentrations are known. The standard free energy of formation of cryolite calculated from solubility experiments is --745.4 ? 1.0 kcal per mole at 25?C. Diagrams are included showing the solubility of cryolite in terms of aluminum, fluoride, and sodium concentrations. The stability fields of cryolite and microcrystalline gibbsite and their solubilities also are shown on pH-[F] diagrams.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Solubility of aluminum in the presence of hydroxide, fluoride, and sulfate
Series title:
Water Supply Paper
Series number:
1827
Chapter:
C
Edition:
-
Year Published:
1969
Language:
ENGLISH
Publisher:
U.S. G.P.O.,
Description:
iv, 37 p. :ill. ;24 cm.