RT info:eu-repo/semantics/article T1 Characterization of the corrosion products formed on zinc in archipelagic subtropical environments A1 Souto, Ricardo Manuel A1 Santana, Juan José A1 Fernández-Pérez, Bibliana María A1 Morales, J. A1 Vasconcelos, H. Cristina A1 González, Sergio A2 Química A2 Grupo de Electroquímica y Corrosión Departamento de Química Instituto de Materiales y Nanotecnología K1 Atmospheric corrosion K1 Zinc K1 Sodium chloride K1 Carbon dioxide K1 Sulphur dioxide K1 X-Ray diffraction AB The atmospheric corrosion of zinc samples exposed at 25 test sites with different climatic and pollution conditions was investigated during a two-year exposure program carried out in three of the Canary Islands (Spain) as to cover the typical range of subtropical environmental conditions. The composition and distribution of the corrosion products of zinc were analyzed qualitatively by X-ray diffraction (XRD). Simonkolleite (Zn5(OH)8Cl2) and hydrozincite (Zn4CO3(OH)6·H2O) were the corrosion products more frequently observed, revealing that chloride and carbon dioxide are the most aggressive pollutants present in the atmosphere. Sulphate-containing species, namely Zinc oxysulfate (Zn3O(SO4)2), Zinc hydroxysulfate (Zn4SO4(OH)6), Zinc diamminehydroxynitrate (Zn5(OH)8(NO3)2·2NH3) and zinc chlorohydroxysulfate (NaZn4Cl(OH)6SO4·6H2O), were also found though in smaller amounts. YR 2012 FD 2012 LK http://riull.ull.es/xmlui/handle/915/19023 UL http://riull.ull.es/xmlui/handle/915/19023 LA en DS Repositorio institucional de la Universidad de La Laguna RD 03-oct-2024