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    STUDIA CHEMIA - Issue no. 2 / 2007  
         
  Article:   ELECTROCHEMICAL INVESTIGATION OF THE INFLUENCE OF TWO THIADIAZOLE DERIVATIVES ON THE PATINA OF AN ARCHAEOLOGICAL BRONZE ARTEFACT USING A CARBON PASTE ELECTRODE.

Authors:  ADRIANA VLASA, SIMONA VARVARA, LIANA MARIA MUREȘAN. 		 
       
         
  Abstract:  The efficiency of two non-toxic thiadiazole derivatives (2-mercapto-5-R-acetylamino-1,3,4-thiadiazole and 2-mercapto-5-R-amino-1,3,4–thiadiazole) as corrosion inhibitors for bronze patina in aqueous electrolytes containing sodium sulphate and sodium hydrogen carbonate (pH 3) was studied by using a carbon paste electrode. The obtained results show the influence of the tested inhibitors on the electrochemical behaviour of patina, the strongest effect being noticed in the case of 2-amino-5-mercapto-1,3,4-thiadiazole.  
         
     
         
         
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