Solubility of toluene in aqueous solutions of various benzenecarboxylates with or without 1-butanol
Miscibility relationships in systems containing short alkyl-side-chain sodium benzenecarboxylats, toluene, and water without (three-component systems) or with (four-component systems) 1-butanol were studied at 55 and 25/sup 0/C, respectively. The results are compared with corresponding sulfonates. The benzenecarboxylates included those of benzene, 2,4-dimethylbenzene, 2,4,6-trimethylbenzene, and tert-butylbenzene. The solubility of toluene in aqueous solutions of the carboxylates increases with the number of alkyl carbons N/sub AC/ attached to the benzene ring and generally with carboxylate concentration (up to ca. 3 mole/kg of H/sub 2/O); it is somewhat higher in the carboxylate solutions than in the corresponding sulfonate solutions. Four-component systems were treated as pseudoternary systems by maintaining a constant carboxylate to water ratio (2 mole/kg of water). Boundaries between one and two phases are fairly symmetrical. The amount of 1-butanol (cosolvent) required to produce miscibility decreases with increasing number of alkyl carbons on the carboxylate. These systems required somewhat less 1-butanol to produce miscibility than the corresponding sulfonate systems. 4 figures, 3 tables.
- Research Organization:
- Oak Ridge National Lab., TN
- OSTI ID:
- 5797365
- Journal Information:
- J. Chem. Eng. Data; (United States), Vol. 24:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
TOLUENE
SOLUBILITY
AQUEOUS SOLUTIONS
BENZENE
BUTANOLS
CARBOXYLIC ACID SALTS
MICROEMULSION FLOODING
ORGANIC COMPOUNDS
SULFONATES
ALCOHOLS
AROMATICS
DISPERSIONS
ENHANCED RECOVERY
FLUID INJECTION
HYDROCARBONS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
ORGANIC SULFUR COMPOUNDS
SOLUTIONS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
020300 - Petroleum- Drilling & Production