Ionic strength dependence of protonation constants of N-alkyl substituted open chain diamines in NaClaq

被引：27

作者：

Crea, F ^{[1
]}

De Stefano, C ^{[1
]}

Giuffrè, O ^{[1
]}

Sammartano, S ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2004年 / 49卷 / 01期

关键词：

D O I：

10.1021/je0301949

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The protonation of nine N-alkyl substitited diamines was studied in NaCl(aq) in the ionic strength range 0.1 < I/mol.L(-1) < 5, at t = 25 degreesC. The dependence on ionic strength of protonation constants was taken into account by using two different models, namely a Debye-Huckel type equation and a simplified version of Pitzer equations. The dependence on N-alkyl substitution of both protonation constants and their parameters for the medium effects is discussed, and empirical relationships are reported.

引用

页码：109 / 115

页数：7

共 55 条

[1] POLYAMINES .14. PROTONATION EQUILIBRIA OF LINEAR TETRAAMINES CONTAINING 2 ETHYLENEDIAMINE RESIDUES [J].