AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA CHEMIA - Ediţia nr.3 din 2014 | |||||||
Articol: |
2-MERCAPTO-5-ACETYLAMINO-1,3,4-THIADIAZOLE AS CORROSION INHIBITOR FOR A NATURALLY PATINATED MONUMENTAL BRONZE ARTIFACT. Autori: . |
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Rezumat:
The present work aims to investigate the corrosion behavior of bronze screws covered with natural patina used in assembling the statuary group of Mathias Rex, placed in the center of Cluj-Napoca, Romania, dating back to 1902. Corrosion tests were carried out in the absence and presence of inhibitors in a 0.2 g / L Na2SO4 0.2 g / L NaHCO3 (pH = 5) solution simulating an acid rain. The research put on evidence the inhibiting effect of 2 - mercapto - 5 acetylamino - 1, 3, 4 - thiadiazole on the naturally patinated artefacts in order to avoid their further degradation. The obtained results were compared with those recorded in the presence of benzotriazole, the most common corrosion inhibitor for Cu and bronze. Key words: bronze, atmospheric corrosion, natural patina, acid rain, corrosion inhibitors
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