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Title: Excess volumes and viscosities of N-methyl-2-pyrrolidinone with branched alcohols at 298.15 K
Authors: Pal, Amalendu
Kumar, Anil
Arbad, B R
Tekale, A B
Issue Date: Aug-2002
Publisher: NISCAIR-CSIR, India
Abstract: Excess volumes (VmE) and viscosities (η) of binary liquid mixtures of N-methyl-2-pyrrolidinone with branched alcohols have been measured as a function of composition at 298. 15 K. The branched alcohol includes 2-propanol, 2-methyl- 1 -propanol, 3-methyl- 1 -butanol, and 2-methyl-2-propanol. The VmE for each of the mixtures studied are negative over the whole composition range. From the experimental data, the deviation in viscosities (Δη) and excess energies of activation (ΔG*E) for viscous flow have been calculated. These values are negative over the entire range of composition. The results for VmE, Δη, and to ΔG*E are discussed in terms of interaction between components. The viscosity data have been correlated with the equations of McAllister, Heric, and Auslaender.
Page(s): 1593-1599
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.41A(08) [August 2002]

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