EXTRACTION OF POTASSIUM p-NITROPHENOXIDE WITH MACROCYCLIC CROWN ETHERS AND CRYPTANDS FROM AQUEOUS MEDIUM INTO DIVERSE ORGANIC SOLVENTS: A SYSTEMATIC EVALUATION
- Authors
- Corporate Authors
- Defence Research Establishment Ottawa, Ottawa ONT (CAN);Queen's Univ, Kingston ONT (CAN) Dept of Chemistry
- Abstract
- A systematic study has been made of the extraction of potassium p-nitrophenoxide from aqueous medium into a number of organic solvents that are immiscible or partly miscible with water, in the presence of several macrocyclic crown ether and cryptand complexing agents. The efficiency of extraction varies extremely widely with the nature of the ligand and the solvent. For some solvent systems DC-18-C-6 is more efficient than [2.2.2] cryptand as an extractant. The extraction values, however, provide only limited insight into the fundamental reasons behind the observed results. Hence equilibria involved have been considered and the results analysed in terms of the equilibrium constants. The microscopic and macroscopic properties of these systems are discussed.
- Date of publication
- 01 Jan 1984
- Number of Pages
- 8
- Reprinted from
- Talanta, vol 31, no 8, 1984, p 585-592
- DSTKIM No
- 86-03225
- CANDIS No
- 97917
- Format(s):
- Hardcopy;Originator's fiche received by DSIS
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- Date modified: