Densities and Excess Molar Volumes for Acetone + Propionic Acid + Water from (283.15 to 323.15) K at Atmospheric Pressure

2005 ◽  
Vol 50 (1) ◽  
pp. 18-22
Author(s):  
Alejandro Estrada-Baltazar ◽  
Fernando Tiscareño-Lechuga ◽  
Gustavo A. Iglesias-Silva ◽  
Kenneth R. Hall
Keyword(s):  
Propionic Acid ◽  
Atmospheric Pressure ◽  
Excess Molar Volumes ◽  
Acid Water ◽  
Molar Volumes

Excess molar volumes of binary mixtures of acetic acid and propionic acid with some members of homologous series of alkanes

1991 ◽  
Vol 56 (4) ◽  
pp. 736-744 ◽  
Author(s):  
Ondřej Drábek ◽  
Ivan Cibulka
Keyword(s):  
Acetic Acid ◽  
Propionic Acid ◽  
Alkyl Chain ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Entire Concentration Range ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Alkane Molecule ◽  
Increasing Temperature

Excess molar volumes of binary liquid mixtures of (acetic or propionic acid = hexane) at 25 and 35°C, and (acetic or propionic acid + heptane or octane) and (acetic acid + dodecane) at 25°C, measured with a tilting dilution dilatometer, are reported. The excess volumes are positive over the entire concentration range for all mixtures and increase with increasing length of an alkane molecule, decrease with increasing of the alkyl chain in a molecule of carboxylic acid, and increase with increasing temperature.

scholarly journals DENSITIES AND EXCESS MOLAR VOLUMES FOR BINARY SOLUTION OF WATER + ETHANOL, + METHANOL AND + PROPANOL FROM (283.15 TO 313.15) K

2014 ◽  
Vol 44 (2) ◽  
pp. 163-166
Author(s):  
A. SHALMASHI ◽  
F. AMANI
Keyword(s):  
Atmospheric Pressure ◽  
Composition Range ◽  
Binary Solution ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Binary Solutions ◽  
Standard Deviations ◽  
Increasing Temperature

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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