Cleaning of two hundred year-old copper
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E. Otero; Dr. J. M. Bastidas
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Article
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1996
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John Wiley and Sons
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German
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This paper studies the use of 5% (wt) citric acid without inhibitor, inhibited with benzotriazole (BTA) and 2-amino-5-mercapto-1,3,4thiadiazole (AMT) and de-aerated with nitrogen in the cleaning of 18th and 19th century chalcographic plates. DC and AC electrochemical techniques have been used to cha