CHEMICAL BEHAVIOR OF BRONZE LOCALIZED CORROSION IN SOIL
This paper describes a study on the corrosion behavior of archaeological bronze in simulated soil solution (0.028 mol· L -1 NaCl+0.01 mol·L -1 Na 2SO 4+0.016 mol·L -1 NaHCO 3) by means of simulated occluded cell (O.C.).The present study illustrates the migration, enrichment and deposition patterns of ions in the environment and the cations produced by anodic dissolution during localized corrosion of bronze.The relationship between copper solution factor f Cu and time is given.The dissolution rate of Sn is higher than that of Cu during the initial period of dissolution. It gradually reverses the trend of dissolution rate i.e. the dissolution rate for Cu is higher than that for Sn. The migration of cations to the bulk solution is obviously observed.