2-エチル-1-ヘキサノールを含むLiBr水溶液中での銅に対する腐食抑制剤

概要

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2-ethyl-1-hexanol increases the wettability of LiBr solution on a copper surface and improves the thermal efficiency of absorption refrigeration. The corrosion inhibition efficiencies for copper were investigated with various inhibitors in the LiBr solution containing 2-ethyl-1-hexanol. When 2-ethyl-1-hexanol was added in the LiBr solution, 1, 2, 3-benzotriazole (BTA), tolyltriazole (TTA) and 5-chlorobenzotriazole didnt show corrosion inhibition efficiency for copper. However, 2, 5-dimercapto-thiadiazole (DMTDA) and bismuthiol-II showed corrosion inhibition efficiency for copper in the LiBr solution containing 2-ethyl-1-hexanol. BTA is extracted by 2-ethyl-1-hexanol. Contrary to this bismuthiol-II and DMTDA are not extracted by 2-ethyl-1-hexanol, because bismuthiol-II and DMTDA are stable in the LiBr solution. DMTDA showed corrosion inhibition efficiency for copper in temperature range from 30ºC to 100ºC.
一般社団法人表面技術協会の論文
2006-08-01