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Citation: Mu Guannan. ADSORPTION OF CETYL PYRIDINE BROMIDE FROM HYDROCHLORIC ACID SOLUTION ON ALUMINIUM SURFACE AND ITS CORROSION INHIBITION[J]. Acta Physico-Chimica Sinica, ;1989, 5(05): 546-550. doi: 10.3866/PKU.WHXB19890508 shu

ADSORPTION OF CETYL PYRIDINE BROMIDE FROM HYDROCHLORIC ACID SOLUTION ON ALUMINIUM SURFACE AND ITS CORROSION INHIBITION

Mu Guannan

1.
Department of Chemistry; Yunnan University; Kunming

Received Date: 14 January 1988
Available Online: 15 October 1989

The role of cetyl pyridine bromide in the corrosion inhibition of aluminium in hydrochloric acid has been investigated by weight loss method. The experimental data have been treated with adsorption theory and Sekine method. The adsorption heat has been calculated. It is found that adsorption of cetyl pyridine bromide from hydrochloric acid solution on aluminium surface obeys basically Langmuir′s isotherm, so the adsorption on aluminium surface was believed to be an important reason of corrosion inhibition. The corrosion inhibition efficiency increases with raising temperature. Relationship between adsorption and corrosion inhibition has been discussed according to the experimental results.
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