Transport and optical properties of the binary liquid mixture containing 1,3-diaminopropane and alkyl acetates (C₁-C₄) at T= (303.15-318.15) K: experimental investigations and theoretical modelling

ABSTRACT

Physicochemical properties of pure liquids and their liquid mixtures at different compositions and at different temperatures have a significant role in the optimisation of chemical processes. Present report involves the analysis of the physicochemical properties of 1,3-diaminopropane and alkyl acetate. The viscosity ($\eta$) and refractive index ($n_D$) of 1,3-Diaminopropane, 1,3-DAP (1), with alkyl acetates, AAc, (C₁-C₄) (2) were measured at different temperatures (T = 303.15 to 318.15 K) under the atmospheric pressure 0.1 MPa. Deviation in viscosity, $\mathrm{\Delta }\eta$, deviation in refractive index, $\mathrm{\Delta }{n}_D$, and excess Gibbs free energy of activation, $G^{\ast E}$ for these binary mixtures were calculated from measured viscosity and refractive index data and fitted to Redlich-Kister polynomial equation (R.K.). The $\mathrm{\Delta }\eta$ data were analysed in terms of the Graph theoretical approach (GTA) to study the interactions in binary mixtures. The $\eta$ values were also correlated by using Bloomfield and Dewan (BFD) model and various correlations. $n_D$ data were correlated by various relevant correlations.

KEYWORDS:

• 1,3-DAP
• alkyl acetates
• viscosity
• refractive index
• interactions

Acknowledgements

Deepak Parmar is extremely thankful to M. D. University, Rohtak for availing University Research Scholarship (URS).

Disclosure statement

No potential conflict of interest was reported by the authors.

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/00319104.2023.2234545.