INVESTIGADORES
VALCARCE Maria beatriz
artículos
Título:
Phosphate ions as inhibiting agents for copper corrosion in chlorinated tap water
Autor/es:
YOHAI L.; W. H. SCHREINER; M. VÁZQUEZ; M.B. VALCARCE
Revista:
MATERIALS CHEMISTRY AND PHYSICS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2013 p. 1 - 8
ISSN:
0254-0584
Resumen:
PO43 ions as corrosion inhibitor were investigated on copper in tap water in the presence of NaClO. Theinhibitor was evaluated by electrochemical techniques and weight loss tests. Raman spectroscopy andX-ray photoelectron spectroscopy were used to study the passive layer. In inhibited tap water, the passivelayer is thick and compact if NaClO is present. Weight-loss tests showed the inhibition of uniformdissolution and no pitting attack. When adding NaClO, Cu3(PO4)2 is incorporated to the passive film.Thus, phosphate ions are effective as inhibitors for copper in tap water, even when using high dosages ofbiocides.
