Excess Molar Volume, Viscosity and Refractive Index for Binary Mixtures of Methyl Laurate with n-Octane, Iso-Octane or Ethyl Cyclohexane

Li, Dan; Pang, Yan; Wang, Jingying; Sun, Danlin; Zhang, Xuena; Yue, Danwei; Hao, Longxia

doi:10.1007/s10953-022-01160-4

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Abbemat refractometer 3200 was used to measure refractive indices of liquid mixture. This refractometer is equipped with an automatic peltier temperature control providing a fast and precise automatic temperature control of the sample with uncertainty ± 0.01K (Pandey et al, 2020;Srivastava et al, 2018;Almasi and Iloukhani, 2010;Li et al, 2022;Mohammadi and Hamzehloo, 2019). Calibration of refractometer was done by using doubly distilled water (Bhatia et al, 2002).…”

Section: Methodsmentioning

confidence: 99%

Excess refractive indices and validation of mixing rules using binary mixture of methyl laurate + Pentan-2-ol at various temperatures (298.15, 303.15, 308.15, 313.15, and 318.15K)

Rani¹,

Nisha²,

Rajesh³

2022

Afr. J. Pure Appl. Chem.

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Refractive index is a characteristic parameter of fluids with numerous industrial uses. The values of refractive indices of many pure liquids are known or can be found in the literature. However, when experimental values of the liquid mixtures are not available then refractive indices of binary mixtures and multi-component liquids are frequently assessed from the pure constituents using mixing rules. The refractive indices ( ) of binary mixture and pure liquids methyl laurate (M.L) and pentan -2-ol (P) over the entire mole fraction range at five temperatures (298.15, 303.15, 308.15, 313.15, and 318.15K) were measured using an Anton-Paar Abbemat 3200 refractometer and were tested with the traditional equations, viz Gladstone-Dale (G.D), Lorentz-Lorentz (L.L), Weiner-relation (W.R) and Heller-relation (H.R). The excess refractive indices ( ) were calculated using measured experimental refractive indices ( and ideal refractive indices. The values of excess refractive indices were found to be negative at low mole fractions and positive over the high mole fractions. The experimental data for binary mixture involving methyl laurate + Pentan-2-ol authenticate the mixing rules.

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