Excess volumes of binary mixtures of cyclohexanone with some monosubstituted benzenes at 298.15 K

1983 ◽  
Vol 61 (9) ◽  
pp. 2147-2150 ◽  
Author(s):  
B. Chawla ◽  
S. K. Mehta ◽  
R. V. Jasra ◽  
S. K. Suri

Molar excess volumes for the binary mixtures of cyclohexanone with benzene and some monosubstituted benzenes, namely, toluene, ethylbenzene, isopropylbenzene, tertiary butylbenzene, chlorobenzene, bromobenzene, iodobenzene, N,N-dimethylaniline, nitrobenzene, benzaldehyde, and benzonitrile have been calculated from the precise and accurate experimental density data at 298.15 K over the entire composition range. The results have been discussed in terms of the strength of molecular interactions in the binary mixtures.

1981 ◽  
Vol 59 (19) ◽  
pp. 2839-2844 ◽  
Author(s):  
S. K. Suri

Molar excess volumes of binary mixtures of tetrahydrofuran with n-propylbenzene, isopropylbenzene, 1,3,5-trimethylbenzene, 1,2,3,4-tetramethylbenzene, diphenylmethane, n-hexane, n-octane, 2,2,4-trimethylpentane, n-nonane, 3,3-diethylpentane, n-dodecane, 2,2,4,6,6-pentamethylheptane, cyclohexane, and methylcyclohexane at 313.5 K have been computed from the experimental density data. The systematic variation of VE with the change in size, substitution, and molecular geometry of the hydrocarbon has been discussed.


1989 ◽  
Vol 67 (10) ◽  
pp. 1672-1675 ◽  
Author(s):  
Homendra Naorem ◽  
S. K. Suri

Molar excess volumes for the binary mixtures of tetrahydrofuran, furan, furfural, and furfuryl alcohol with benzene, chlorobenzene, and bromobenzene have been calculated from precise experimental density data at 298.15 K over the entire composition range. The results have been discussed in light of unlike n–π interactions between the π-electron cloud of the aromatic ring and the oxygen atom of the heterocyclic ring. The substitution of a halogen atom in the aromatic ring activates the molecule for n–π interactions in tetrahydrofuran and furan solutions and deactivates the molecule in furfural and furfuryl alcohol solutions. Keywords: furan derivatives, binary mixtures, excess volumes, n–π interactions, π–π interactions.


2005 ◽  
Vol 235 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Sanjeev Maken ◽  
Bal Raj Deshwal ◽  
Renu Chadha ◽  
Anu ◽  
Krishan Chander Singh ◽  
...  

1980 ◽  
Vol 58 (18) ◽  
pp. 1902-1905 ◽  
Author(s):  
Ram K. Nigam ◽  
Prem P. Singh ◽  
Krishan C. Singh ◽  
Mohan Singh ◽  
Ruchi Mishra

Molar excess volumes, VE at 298.15 and 308.15 K, molar excess enthalpies HE at 308.15 K, and total vapour pressure at 298.15 and 308.15 K. have been measured for binary mixtures of 1,2-dichloroethane with aromatic hydrocarbons. The VE and HE data for an equimolar mixture at 308.15 K only have been utilized to predict VE, HE, and TSE values (using Sanchez and Lacombe theory) for these mixtures as a function of temperature and composition. The agreement between the predicted and the corresponding experimental values is good so far as VE and HE data are concerned but the same is not true of the TSE values.


1990 ◽  
Vol 55 (10) ◽  
pp. 2395-2403 ◽  
Author(s):  
Kamila Chýlková ◽  
Ivona Malijevská

Densities at 20 °C and molar excess volumes calculated from them are reported in the work for the mixtures of the substances: propionic acid-n-heptane, propionic acid-benzene, trifluoroacetic acid-benzene, propionic acid-cyclohexane, acetic acid-cyclohexane, acetic acid-trifluoroacetic acid, acetic acid-propionic acid, and propionic acid-trifluoroacetic acid. For the last system mentioned, a strange dependence of excess volume on composition was found which is noted for three local extremes. The dependences of excess volume on composition are correlated by the Redlich-Kister polynomial.


1980 ◽  
Vol 58 (3) ◽  
pp. 229-230 ◽  
Author(s):  
Goolla Narayana Swamy ◽  
Golla Dharmaraju ◽  
Gurajala Kodanda Raman

Excess volumes for binary mixtures of toluene with 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 1-pentanol, 1-hexanol, 1-heptanol, and cyclohexanol have been measured as a function of composition at 303.15 K by a dilatometric method. The excess volume curves for 1-propanol and 1-butanol are sigmoid. For other alcohols VE values are positive over the entire composition range.


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