Spectrophotometric study of metal-ligand reactions in isooctane/Brij30/water nonionic microemulsions

Celia Cabaleiro-Lago, L. Garcia-Rio, P. Herves, J. Perez-Juste

Forskningsoutput: TidskriftsbidragArtikelPeer review

2 Citeringar (Scopus)


The complexation between Ni2+ and pyridine-2-azo-p-dimethylaniline (PADA) was studied in isooctane/polyoxyethylenglycol dodecyl ether (Brij30)/water microemulsions at 25 degrees C. The apparent complexation constant depends on microemulsion composition. The proposed model, which takes into account the heterogeneity of the system at the microscopic scale, allows us to determine the distribution constants of both reactants and the complexation constant at the interface. The complex is less stable in microemulsion than in water due to a more efficient hydration of the nickel hexahydrate coordination complex that arises from the interaction between the polar head group of the surfactant and the interfacial water. (c) 2006 Elsevier B.V. All rights reserved.

Sidor (från-till)49-54
Antal sidor5
TidskriftColloids and Surfaces APhysicochemical and Engineering Aspects
StatusPublicerad - 2007
Externt publiceradJa

Nationell ämneskategori

  • Fysikalisk kemi (10402)


Fördjupa i forskningsämnen för ”Spectrophotometric study of metal-ligand reactions in isooctane/Brij30/water nonionic microemulsions”. Tillsammans bildar de ett unikt fingeravtryck.

Citera det här