Determination of soluble species and precipitates of aluminum phosphate
The interaction between aluminum(III) and orthophosphate salts was studied. The investigation involved the direct measurement of phosphate remaining in solution after precipitation with different applied concentrations of aluminum(III) at varying pH, the establishment of the pH limits of precipitation as determined from light-scattering measurements taken at varying P to Al ratios, and alkametric potentiometric titrations with subsequent computer analysis using the program SCOGS. Several soluble species and their formation constants were determined. Solid phases identified included AlPO/sub 4/(s), Al/sub 3/(OH)/sub 3/(PO/sub 4/)/sub 2/(s), and Na/sub 3/Al/sub 5/H/sub 6/(PO/sub 4/)/sub 8/(s).
- Research Organization:
- Ohio State Univ., Columbus (USA)
- OSTI ID:
- 5999381
- Journal Information:
- Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 23:14-15; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ALUMINIUM
CHEMICAL REACTIONS
DATA
DISPERSIONS
ELEMENTS
EQUILIBRIUM
EXPERIMENTAL DATA
INFORMATION
METALS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
PHOSPHATES
PHOSPHORUS COMPOUNDS
PRECIPITATION
QUANTITY RATIO
SEPARATION PROCESSES
SOLUBILITY
SOLUTIONS