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Latin American applied research

On-line version ISSN 1851-8796

Abstract

SHALMASHI, A  and  AMANI, F. Densities and excess molar volumes for binary solution of water + ethanol, + methanol and + propanol from (283.15 TO 313.15) K. Lat. Am. appl. res. [online]. 2014, vol.44, n.2, pp. 163-166. ISSN 1851-8796.

Densities for binary solutions of three alcohol (Ethanol, Methanol and propanol) with water over the whole composition range have been measured at temperatures from (283.15 to 313.15) K in 10 K intervals and atmospheric pressure (101.3 kPa). From these data, the excess molar volumes (VE) were calculated. The excess molar volumes for these systems were found to be negative across the whole composition and at all temperatures investigated. The excess molar volumes for ethanol and propanol + water become less negative with increasing temperature and conversely the excess molar volumes for methanol+ water become more negative with increasing temperature. The standard deviations (σ) for densities were calculated that ranged from 0.0000 to 0.001

Keywords : Density; Excess Molar Volume; Binary Solution; Dielectric Constant.

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