Neptunium (IV) oxalate solubility. [22, 45, 60/sup 0/C]
The equilibrium solubility of neptunium (IV) oxalate in nitric/oxalic acid solutions was determined at 22/sup 0/C, 45/sup 0/C, and 60/sup 0/C. The concentrations of nitric/oxalic acid solutions represented a wide range of free oxalate ion concentration. A mathematical solubility model was developed which is based on the formation of the known complexes of neptunium (IV) oxalate. the solubility model uses a simplified concentration parameter which is proportional to the free oxalate ion concentration. The solubility model can be used to estimate the equilibrium solubility of neptunium (IV) oxalate over a wide range of oxalic and nitric acid concentrations at each temperature.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 5904308
- Report Number(s):
- DP-1655; ON: DE83016116
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
DATA
DICARBOXYLIC ACIDS
DISPERSIONS
EQUATIONS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
MATHEMATICAL MODELS
MIXTURES
NEPTUNIUM COMPOUNDS
NITRIC ACID
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXALATES
OXALIC ACID
SOLUBILITY
SOLUTIONS
TEMPERATURE DEPENDENCE
TRANSURANIUM COMPOUNDS
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
DATA
DICARBOXYLIC ACIDS
DISPERSIONS
EQUATIONS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
MATHEMATICAL MODELS
MIXTURES
NEPTUNIUM COMPOUNDS
NITRIC ACID
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXALATES
OXALIC ACID
SOLUBILITY
SOLUTIONS
TEMPERATURE DEPENDENCE
TRANSURANIUM COMPOUNDS