Enthalpies of solution of n-alcohols in formamide and ethylene glycol

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Rocha, F (Author) Other; Bastos, M (Author) FCUP

Journal

Title: Journal of Solution Chemistry

Vol. 26

Pages: 989-996

ISSN: 0095-9782

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 16 Citations

Scopus - 16 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-001-AKW

DOI: 10.1007/bf02768055

Abstract (EN): The enthalpies of solution of I-pentanol, 1-hexanol and 1-heptanol and water were determined in formamide and in ethylene glycol, at 25 degrees C, by macrosolution calorimetry. The observed enthalpies of solution far the n-alcohols are positive in the two solvents, and of similar magnitude. The enthalpy of solution of water is positive in formamide, and negative in ethylene glycol. From the enthalpies of solution, the enthalpies of salvation and the enthalpies of transfer for organic solvent-->water were calculated Using our values and literature data for alkanols, it was possible to see that both the enthalpies of solution and the enthalpies of salvation presented a constant CH2 increment for the entire series, in contrast with their behavior in water. The methylene increments for these properties in different solvents are compared with parameters considered to reflect the cohesive energy of the solvent.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8