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DENSITIES AND EXCESS MOLAR VOLUMES FOR BINARY SOLUTION OF WATER + ETHANOL, + METHANOL AND + PROPANOL FROM (283.15 TO 313.15) K
Author(s) -
A Shalmashi,
F Amani
Publication year - 2014
Publication title -
latin american applied research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 23
eISSN - 1851-8796
pISSN - 0327-0793
DOI - 10.52292/j.laar.2014.435
Subject(s) - molar , methanol , alcohol , ethanol , chemistry , propanol , 1 propanol , analytical chemistry (journal) , molar volume , thermodynamics , chromatography , organic chemistry , medicine , physics , dentistry
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.

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