USE OF A WASTE OF PROCESSING OF GRAPES FOR METAL PROTECTION FROM ATMOSPHERIC CORROSION
The goal of the study was investigation of the inhibition efficiency and quantitative composition volatile components the extract of bunch grapes - industrial waste processing grapes as volatile corrosion inhibitor. It was studied the influence of plant extract on electrochemical and corrosion behavior of steel. It was established that the extract of bunch grapes acts as inhibitor of mixed type inhibiting both anodic and cathodic reactions. A novel volatile corrosion inhibitor, the extract of bunch grapes, was developed for temporary protection of carbon steel with periodic moisture condensation. Gravimetric method research the possibility of protecting the metal from corrosion with an aqueous solution of a volatile inhibitor. Volatile compounds isopropanol extract of bunch grapes was studied by gas chromatography-mass spectrometry. Found that the major components of the extract of bunch grapes are aldehydes: benzaldehyde, syringaldehyde, сinnamaldehyde, Е-сitral, (E)-2-Hexenal; terpene compound: сarvacrol, geraniol, linalool, nerol. Bibl. 9, Fig. 2, Table 2.
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