COPPER PATINS FORMED IN SEAWATER AND ITS RELATIONSHIP WITH THE MECHANISM OF ITS CORROSION IN THIS MEDIUM

Authors

  • L. Núñez Centro Nacional de Investigaciones Científicas
  • C. Haces Centro Nacional de Investigaciones Científicas
  • E. González Centro Nacional de Investigaciones Científicas
  • M. Echagüe Centro Nacional de Investigaciones Científicas

Abstract

The corrosion of copper in a non-contaminated sea water station was studied monitoring the corrosion product (patinas) composition and its relation to the amount of biofouling. Patinas obtained from different immersion time, up to a year, were characterized using IR and XRD techniques. Paratacamite, botallackite, malaquite and cuprite were the main phases found in the corrosion products being the former one the main phase for immersion time up to 9 months. For higher exposition time, copper oxide (cuprite) was the dominant phase. Cuprite forms a compact film on the metal reducing its corrosion rate and limiting the formation of biofouling.

Published

2022-11-08

How to Cite

Núñez, L. ., Haces, C. ., González, E. ., & Echagüe, M. . (2022). COPPER PATINS FORMED IN SEAWATER AND ITS RELATIONSHIP WITH THE MECHANISM OF ITS CORROSION IN THIS MEDIUM. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 29(1), 021-025. Retrieved from https://revista.cnic.cu/index.php/RevQuim/article/view/2535

Issue

Section

Research articles