| 摘要 |
FIELD: corrosion metal protection in acid using an inhibitor. ^ SUBSTANCE: claimed inhibitor contains condensation product of amine with aldehyde, such as salicylal-3-bromo-4-aminoquinoline (27.8-34.6 mass %), as well as 2,4-dinitroaniline-5-iodo-2-thiophensulfonic acid (32.8-41.3 mass %), and urotropine (24.1-39.3 mass %). Inhibitor of present invention is useful in etching of steel, titanium and aluminum, as well as in equipment acidic purification. ^ EFFECT: effective retardation of steel, titanium and aluminum corrosion in hydrochloric and sulfuric acid, sufficient suppression of steel hydrogenation. ^ 2 tbl |
