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Apparent Molal Volumes and Adiabatic Compressibilities of n -Alkanols and α,ω-Alkane Diols in Dilute Aqueous Solutions at 5, 25, and 45°C. I. Apparent Molal Volumes

1975; Oxford University Press; Volume: 48; Issue: 3 Linguagem: Inglês

10.1246/bcsj.48.783

1348-0634

Toshio Nakajima, Tsuyoshi Komatsu, Tsurutaro Nakagawa,

Chemical and Physical Properties in Aqueous Solutions

Abstract Density measurements have been carried out on a series of dilute aqueous solutions of n-alkanols and α,ω-alkane diols. The apparent molal volumes, φV, have been derived, and the φ°V values (V°2) at an infinite dilution have been estimated. The \barV°2, the ∂2\barV°2⁄∂T, and the ∂2\barV°2⁄∂T2 of the CH2, the CH3, and the CH2OH groups were obtained from the dependence of the \barV°2 and its temperature behavior upon the alkyl-chain length. It was found that the ∂2\barV°2⁄∂T2 value well reflects the structural effect.