Protonation of diamines H2N-(CH2)(n)-NH2 (n=2-10) in NaCl aqueous solutionat different ionic strengths

Authors
Cascio, S De Robertis, A Foti, C
Citation
S. Cascio et al., Protonation of diamines H2N-(CH2)(n)-NH2 (n=2-10) in NaCl aqueous solutionat different ionic strengths, J CHEM EN D, 44(4), 1999, pp. 735-738
Citations number
21
Categorie Soggetti
Chemistry,"Chemical Engineering
Journal title
JOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN journal
00219568 → ACNP
Volume
44
Issue
4
Year of publication
1999
Pages
735 - 738
Database
ISI
SICI code
0021-9568(199907/08)44:4<735:PODH(I>2.0.ZU;2-6
Abstract
Protonation constants of diamines H2N-(CH2)(n)-NH2 (n = 3, 4, 5, 6, 8, 10) were determined potentiometrically (H+-glass electrode) in different NaCl a queous solutions, at I less than or equal to 1 mol dm(-3). Dependence on io nic strength was considered by using Debye-Huckel and Pitzer type equations . General relationships for both protonation constants and parameters for t he dependence on ionic strength are reported.