Health & Environmental Research Online (HERO)


Print Feedback Export to File
8327529 
Journal Article 
Complex formation of silver ion with ethylenediamine and 1,2-propanediamine 
Ohtaki, H; Ito, Y 
1973 
Yes 
Journal of Coordination Chemistry
ISSN: 0095-8972
EISSN: 1029-0389 
3 
2 
131-144 
English 
Complex formation of silver ion with ethylenediamine and 1,2-propanediamine has been studied potentiometrically at 25°C in 3M LiClO4 aqueous solution. In the range of the total silver concentration of 0.0025 to 0.020 M and of pH up to 10.4, the emf data obtained could be explained in terms of the formation of the following complexes: [formula omitted] in the system of ethylenediamine solution and [formula omitted] in the system of 1,2-propanediamine solution, where [formula omitted], and L denotes the neutral molecule of the diamines. Dissociation constants of protonated ethylenediamine and 1,2-propanediamine were found to be pK1, = 8.044 ± 0.01 and pK2 = 10.65o ± 0.01 for the former and pK1 = 7.635 ± 0.01 and pK2 = 9.982 ± 0.01 for the latter. © 1973, Taylor & Francis Group, LLC. All rights reserved.