The inhibition of the corrosion of iron by 0·1 M sodium hydroxide and 0·1 M sodium tetraborate is accompanied by thickening of the air-formed oxide film, which is absent in the presence of 0·5 M sodium tartrate. It is concluded that in the pH range 9·3 – 12·6 general film thickening is not a necessity for inhibition, but arises as a consequence.
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References
1.
HancockP., & MayneJ. E. O., J. chem. Soc., 1958, p. 4172
