title: The pK(a) values of N,N,N',N'-tetrakis-(2-hydroxypropyl)ethylenediamine.
abstract: Aqueous solutions of the industrially important chelating agent N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine exhibit basic properties. The proton dissociation constants were determined to be 8.99 +/- 0.04 (pK(1)) and 4.30 +/- 0.04 (pK(2)) by potentiometric titration at 25 degrees in 0.15M sodium chloride.
authors.affiliation: Department of Chemistry, University College, Cork, Ireland.
authors.forename: R
authors.initials: R
authors.lastname: McMahon
authors.forename: M
authors.initials: M
authors.lastname: Brennan
authors.forename: J D
authors.initials: JD
authors.lastname: Glennon