Studies with inorganic precipitate membranes—XI: Evaluation of the thermodynamically effective fixed charge density by various methods
✍ Scribed by Fasih A. Siddiqi; M. Nasim Beg; Surendra P. Singh; Abdul Haque
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 612 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
Abstrac
-Thermodynamitily effective fixed charge densities of parchment supported membranes were estimated by methods of (a) Teorell-Meyer-Sievers, (b) Altug and Hair, and (c) the most recent one of Kobatake based on the thermodynamics of irreversible processes. The two limiting forms of Kobatake's equation for dilute and concentrated ranges gave identical values of charge densities. It is interesting to note that these two values of limiting cuses are closer to the Teorell-Meyer-Sievers and Altug and Hair values. The theoretical prediction for membrane potential by the Kobatake's equation were borne out quite satisfactorily by experimental results obtained with both the membranes.