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Densities, refractive indices, and derived excess properties of {x1CH3COOCH3+x2CH3OH+(1−x1−x2)CH3CH(OH)CH3} at the temperature 298.15 K

✍ Scribed by J.M Canosa; A Rodrı́guez; M Iglesias; B Orge; J Tojo

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
239 KB
Volume
29
Category
Article
ISSN
0021-9614

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✦ Synopsis

Densities

and refractive indices of {x1CH3COOCH3

, and {xCH3OH + (1 -x)CH3CH(OH)CH3} have been determined experimentally as a function of the mole fraction(s) at the temperature 298.15 K and atmospheric pressure. A vibrating tube digital densimeter and an Abbe-type refractometer of synthetic sapphire prism (sodium D wavelength) were used, the whole mole fraction range being covered. Excess molar volumes and changes of refractive indices on mixing were determined from experimental data, variable-degree polynomials being fitted with the results. Values of densities and refractive indices, as well as the derived excess properties, were estimated and compared using different methods. Partial excess molar volumes and those corresponding to the infinite dilution condition were also calculated at the same temperature.

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Excess molar volumes V E m of the ternary mixture {x1CH3(CH2)3OH+x2CH3(CH2)4CH3 + (1-x1-x2)CH3(CH2)3NH2} at the temperatures 298.15 K and 313.15 K, and the binary mixtures {xCH3(CH2)3OH + (1-x)CH3(CH2)3NH2}, {xCH3(CH2)4CH3 + (1-x)CH3(CH2)3NH2} at T=313.15 K have been determined from density measurem