| 摘要 |
FIELD: metallurgy, machine engineering. SUBSTANCE: inhibitor has product of condensation of aldehyde with amine (14-19 wt.-%) and urotropin (33.3-45.8 wt. -%). Condensation product is N-(3-methoxy-4-hydroxybenzylidene)-4-amino-5-bromo-1-phenylpy- -ridazone-6 and, additionally, 2-nitropropanediol-1,3 (18.7-23.8 wt. -%) and 4-methyl-5-β-hydroxyethyl-N-(2-methyl-4-amino-5-methylpyrim- -idyl)-thiazolium-iodide hydroiodode (20.3-23.8 wt. -%). Inhibitor can be used for steel and titanium etching. EFFECT: increased protection degree against corrosion, enhanced efficiency of steel protection against hydrogen absorption. |
