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Excess molar volumes at T= 303 .15 k and refractive indices n at T= 298.15K have been measured for binary liquid mixtures of tetrahydrofuran (C4H8O ) with dichloromethane (CH2Cl2), trichloromethane(CHCl3) , 1,2dichloroethane (CH2ClCH2Cl), trichloroethane (CH2ClCHCl2) and 1,1,2,2-tetrachloroethane(CHCl2CHCl2). The values of have been found to be negative throughout the entire range of compositions for XC4H8O +( 1-X) CHCl3, XC4H8O +( 1-X) CHClCCl2 , and XC4H8O +( 1-X) CHCl2CHCl2 . For XC4H8O +( 1-X) CH2Cl2 the have been found to be very slightly positive at very low values of molar fractions X of C4H8O , and negative at the higher values of X with inversion of sign of occurring at X = 0.15. For XC4H8O +( 1-X) CH2ClCH2Cl, the has been found to be positive at lower values of X and negative at higher values of X , with inversion of sign of occurring at X = 0.7. The values of and n have been fitted with the representative equations. The has been discussed in the light of the existence of electron donoracceptor interaction between the components.

international journal of science and research

Excess Molar Volumes and Refractive Indices of Tetrahydrofuran, Dichloromethane, Trichloromethane, 1, 2-Dichloroethane, Trichloroethane and 1, 1, 2, 2-Tetrachloroethane