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Acoustic and Volu,E Effects Of Self-Association Of 3-Methylpyrazole In Cyclohexane

100%

Bebek K. , Filosek G. , Ernst S.

tom Vol. 25

23-28

The speeds of ultrasound in and densities of 3-methylopyrazole with cyclohexane mixtures were measured in the whole concetration range at 293.15 and 313.15 K. The Excess molar volumes, free volumes excess volumes and diabatic copressibilty coefficients, as well as the free intermolecular lenghts were determinated for the binaries. The dependance of the excess molar volumes and excess free volumes on the mixture composition were compared and discussed in terms of the free intermolecular lenght and other factors affecting the self-association of 3-methylopyrazole and structural changes of the non-polar solvent. Search Site

Ultrasonic and Volumetric Effects of Self-Association of Aliphatic Alcohols in Cyclohexane

100%

Bebek K.

2003

tom Vol. 24

17-22

The speed of ulrtasound in and densities of binary solutions of ethanol, propan-2-ol and 2-methylopropan-2-ol in cyclohexane were measured on the whole concentration range at 293.15K. The excess molar volumes, free volumies, excess free volumes and adiabatic cmpressibility coeffcients, as well as the free intermolecular lenghts were determined for binaries. The dependance of the excess molar volumes and excess free volumes on the mixture composition were compared and discussed in terms of the intermolecular lenght and other factors afecting the self-association of alcohols and structural changes od the solvent.