1,4-BENZOQUINONE DERIVATIVES AS INHIBITORS OF CORROSION AND HYDROGEN ABSORPTION OF STEEL AT PRESENCE OF SRB

The results of study of the derivatives of 1,4-hydroquinone as inhibitors of
microbiological corrosion and hydrogen absorption of mild steel in a water-salt
media supporting the development of sulphate reducing bacteria (SRB) and
close by its composition to the sea water containing biogenic hydrogen sulphide.
Content of H2S, bacterial titre in the corrosive meas well as its pH, Eh and
potential of steel '; were determined together with the quantity of hydrogen
absorbed by surface layers of steel. Protective efficiency of the best studied
species from corrosion reaches 65...84 %, as for their action against hydrogen
absorption by steel specimen 60...72 %. The decrease of the number of SRB
cells due to the action of the derivatives of 1,4-hydroquinone was found to be
48...84 %, while the suppression degree 29...57 % (at the concentration of
5 mMol/L).
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