各種有機化合物の腐食抑制効果
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概要
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The acid cleaning is considered more effective than the mechanical cleaning in order to remove oxide film from the large iron and steel equipments such as boilers and turbines. In the acid cleaning, the corrosion inhibitor is desirable to be adapted in order to reduce the attack on the metal by acid. This is especially necessary in the case of large and precious equipments.<BR>The author investigated the acid corrosion inhibitor effect of various organic compounds to mild steel in hydrochloric acid solution and showed that Dithizone, Urotropin, Fuchsine and Methyl Red belonging to the usual organic chemical had a large corrosion inhibitor effect. As Urotropin<BR>dissolved easily in to the acid solution among aforementioned chemicals, therefore was tractable it was concluded to use Urotropin as the inhibitor.
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