Location of Repository

Organic substances as inhibitors or stimulators of acid corrosion of iron.

By A. FRIGNANI, TRABANELLI G., ZUCCHI F. and ZUCCHINI M.

Abstract

The literature reports various cases of organic compounds which may behave as inhibitors or stimulators of the acid corrosion of iron, by diminishing their concentration. Nevertheless, systematic researches on this problems are scarce. In this paper, in order to verify if the quoted phenomenon is generalizable, the influence of different organic substances on the corrosion of Armco iron in 1 N H2SO4 solution has been studied. Organic compounds of different molecular structure and stability (nitrile, azole and triazole derivatives) have been considered. To determine the influence of the concentration of the additives, spectrophotometric and gravimetric measurements of iron corrosion rates in a wide range of additive concentration have been performed. The recording of the polarization curves at different potential sweep rate allowed us to emphasize the action exerted by the various compounds on the anodic and cathodic partial processes, in different experimental conditions.\ud An attempt has been made to interprete the behaviour of the examined substances as a function of their concentration in the acid solutions

Topics: Acid, Concentration, Corrosion, Inhibition, Iron, Organic Compounds, Stimulation.
Publisher: UNIVERSITA' DI FERRARA
Year: 1975
OAI identifier: oai:iris.unife.it:11392/464384
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://hdl.handle.net/11392/46... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.