Excess molar volumes of (ethyl formate or ethyl acetate + 1-chloroalkane) at 298.15 K

1987 ◽  
Vol 32 (4) ◽  
pp. 464-466 ◽  
Author(s):  
Juan Ortega ◽  
Jose S. Matos ◽  
Maria I. Paz-Andrade ◽  
Josefa Fernandez
Keyword(s):  
Ethyl Acetate ◽  
Excess Molar Volumes ◽  
Ethyl Formate ◽  
Molar Volumes

Excess molar volumes of (ethyl formate or ethyl acetate + an isomer of hexanol) at 298.15 K

1985 ◽  
Vol 17 (12) ◽  
pp. 1127-1132 ◽  
Author(s):  
J Ortega ◽  
J.S Matos ◽  
M.I Paz Andrade ◽  
E Jimenez
Keyword(s):  
Ethyl Acetate ◽  
Excess Molar Volumes ◽  
Ethyl Formate ◽  
Molar Volumes

Excess Molar Volumes and Speed of Sound of Ethyl Acetate and Butyl Acetate with 2-Alkoxyethanols at 308.15 K

2000 ◽  
Vol 45 (4) ◽  
pp. 590-593 ◽  
Author(s):  
Gandi Chandrasekhar ◽  
Pannuru Venkatesu ◽  
Murari Venkata Prabhakara Rao
Keyword(s):  
Ethyl Acetate ◽  
Speed Of Sound ◽  
Butyl Acetate ◽  
Excess Molar Volumes ◽  
Molar Volumes

Excess molar volumes of (ethyl formate + each of several alkanols) at 298.15 K

1986 ◽  
Vol 18 (5) ◽  
pp. 403-406 ◽  
Author(s):  
J Ortega ◽  
R Bravo ◽  
E Jimenez ◽  
M.I Paz Andrade
Keyword(s):  
Excess Molar Volumes ◽  
Ethyl Formate ◽  
Molar Volumes

scholarly journals Cibulka correlation for ternary excess molar volumes for [MOA]⁺[Tf₂N]⁻ at different temperatures

2012 ◽  
Author(s):  
◽  
Zikhona Tywabi
Keyword(s):  
Ionic Liquid ◽  
Ethyl Acetate ◽  
Molar Volume ◽  
Intermolecular Interactions ◽  
Excess Molar Volume ◽  
Infinite Dilution ◽  
Excess Molar Volumes ◽  
Volume Data ◽  
Molar Volumes ◽  
Fitting Parameters

In this work, the binary and ternary excess molar volumes have been calculated from the density, ρ, measurements using an Anton Paar (DMA 38) vibrating tube digital densimeter. One component of the ternary systems studied was an ionic liquid. The ionic liquid used is methyl trioctylammonium bis(trifluoromethylsulfonyl)imide [MOA]+[Tf2N]-. Binary excess molar volumes were obtained for (1-butanol + ethyl acetate) and (2-butanol + ethyl acetate) systems at T = (298.15, 303.15, and 313.15) K. Ternary excess molar volumes were obtained for the mixtures {[MOA]+[Tf2N]- + 2-propanol or 1-butanol or 2-butanol + ethyl acetate} at T = (298.15, 303.15, and 313.15) K. The Redlich-Kister equation was fitted to the calculated binary excess molar volume data to obtain the fitting parameters which were used to calculate the partial molar volumes at infinite dilution. The calculated partial molar volume was used to better understand the intermolecular interactions of each component at infinite dilution. The Redlich-Kister parameters were also used in the Cibulka equation and the Cibulka equation was used to correlate the ternary excess molar volume data to give the fitting parameters. The binary excess molar volumes,VmE , for the (1-butanol + ethyl acetate) and (2-butanol + ethyl acetate) are positive at each temperature over the entire composition range. At high mole fractions of the alcohol for the binary systems (2-propanol or 1-butanol or 2-butanol + ethyl acetate), VmE is positive again, similar to the Cibulka ternary correlation. The positive V E m values are due to the breaking of intermolecular interactions in the pure components during the mixing process. The ternary excess molar volume,V E 123 , values are negative for all mole fractions. The negative values are due to a more efficient packing and/ or attractive intermolecular interactions in the mixtures than in the pure liquid. There is also a contraction in volume which can be attributed to electron-donor-acceptor type interactions between the ionic liquid and 2-propanol or 1-butanol or 2-butanol as well as ethyl acetate.

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