Refractometric
studies of liquid mixtures
Rathour Sumit, Tiwari Brijlesh Kumar, Ramakant, Shrivastava Subhash Chandra and
Srivastava Vishnu Prabhakar
Res. J. Chem. Environ.; Vol. 29(8); 101-106;
doi: https://doi.org/10.25303/298rjce1010106; (2025)
Abstract
Refractometric investigations have been conducted on selected quaternary liquid
mixtures to analyse their optical properties and intermolecular interactions at
a controlled temperature of 298.15K. The studied systems include:
a) n-Pentane + Toluene + n-Heptane + Cyclohexane
b) n-Pentane + n-Hexane + Benzene + Toluene
c) n-Heptane + n-Hexane + Cyclohexane + Benzene
The refractive indices of these mixtures were measured to examine the deviations
from ideal behaviour, providing insights into molecular interactions, structural
arrangements and composition-dependent optical properties. The results indicate
a satisfactory correlation between experimental values and theoretical predictions,
confirming the reliability of the refractometric approach in characterizing multicomponent
liquid systems. These findings contribute to a better understanding of the optical
and thermodynamic behaviour of hydrocarbon-based quaternary mixtures, which are
of significant relevance in industrial and scientific applications.
