Volatility of Aqueous Sodium Hydroxide, Bisulfate and Sulfate
Technical Report
·
OSTI ID:1436974
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
The partitioning of sodium hydroxide, and mixtures of sodium sulfate/sodium hydroxide and sulfuric acid/sodium bisulfate/sodium sulfate from aqueous solutions to the vapor phase were investigated in laboratory-scale experiments to 350°C. These experiments were carried out in a platinum-lined autoclave with provision for sampling the liquid and vapor phases through platinum tubing fitted with water cooled condensers and inert PEEK© valves and tubing. Equilibrated samples of both phases were analyzed by ion chromatography, and by acidimetric titration whenever feasible. The liquid-phase pH was controlled by either the presence of excess sodium hydroxide or by two buffering mixtures of sulfuric acid/bisulfate and sulfate/bisulfate to confirm the reliability of the pH control.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; Lockheed Martin Corporation
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 1436974
- Report Number(s):
- EPRI-TR--102468
- Country of Publication:
- United States
- Language:
- English
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