The densities, ρ, of binary mixtures of butyl acrylate with 1-butanol, 2-butanol, 2-methyl-1-propanol, and 2-methyl-2-propanol, including those of the pure liquids, were measured over the entire composition range at temperatures of (288.15, 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From the experimental data, the excess molar volume VmE\documentclass[12pt]{minimal}
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\begin{document}$$ V_{\text{m}}^{\text{E}} $$\end{document}, partial molar volumes V¯m,1\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,1}} $$\end{document} and V¯m,2\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,2}} $$\end{document}, and excess partial molar volumes V¯m,1E\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,1}}^{\text{E}} $$\end{document} and V¯m,2E\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,2}}^{\text{E}} $$\end{document}, were calculated over the whole composition range as were the partial molar volumes V¯m,1∘\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,1}}^{^\circ } $$\end{document} and V¯m,2∘\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,2}}^{^\circ } $$\end{document}, and excess partial molar volumes V¯m,1∘E\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,1}}^{{^\circ {\text{E}}}} $$\end{document} and V¯m,2∘E\documentclass[12pt]{minimal}
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\begin{document}$$ \overline{V}_{\text{m,2}}^{{^\circ {\text{E}}}} $$\end{document}, at infinite dilution,. The VmE\documentclass[12pt]{minimal}
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\begin{document}$$ V_{\text{m}}^{\text{E}} $$\end{document} values were found to be positive over the whole composition range for all the mixtures and at each temperature studied, indicating the presence of weak (non-specific) interactions between butyl acrylate and alkanol molecules. The deviations in VmE\documentclass[12pt]{minimal}
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\begin{document}$$ V_{\text{m}}^{\text{E}} $$\end{document} values follow the order: 1-butanol < 2-butanol < 2-methyl-1-propanol < 2-methyl-2-propanol. It is observed that the VmE\documentclass[12pt]{minimal}
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\begin{document}$$ V_{\text{m}}^{\text{E}} $$\end{document} values depend upon the position of alkyl groups in alkanol molecules and the interactions between butyl acrylate and isomeric butanols decrease with increase in the number of alkyl groups at α-carbon atom in the alkanol molecules.
