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EnglishDensity and sound velocity of aq. solns. contg. monofunctional primary, secondary and tertiary amines, as well as bifunctional primary and secondary amines (B), and their corresponding hydrochlorides, (BHCl), were measured; the apparent molar compressibilities were calculated. From the limiting apparent molar compressibilities of B, BHCl and HCl in aq. soln. the changes in compressibilities, Δϕ°K,S, for protonation of B was obtained. The pattern shown by the Δϕ°K,S values was similar to that presented by the changes, ΔX°r, of other thermodn. properties, such as Cp and V, for the formation of BHCl species from B and HCl. The different values of Δϕ°K,S obsd. for amines having the same no. of hydrogens bonded to N but differing in the presence of a second hydrophilic group was attributed to the removal of the hydrophobic hydration of the alkyl groups brought about by this center.
| Autori interni: | ||
| Autori: | CABANI S.; MATTEOLI E.; TINE' M | |
| Titolo: | Compressibility changes in protonation of some organic aliphatic nitrogen compounds in aqueous solution | |
| Anno del prodotto: | 1983 | |
| Digital Object Identifier (DOI): | 10.1524/zpch.1983.137.1.023 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11568/3215
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