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Corrosion‐inhibiting properties of red lead—I. Pigment suspensions in aqueous solutions
Author(s) -
Lindqvist St.Å.,
Vannerberg N.G.
Publication year - 1974
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19740251008
Subject(s) - cathode , electrolyte , aqueous solution , slurry , electron microprobe , scanning electron microscope , phase (matter) , cathodic protection , sodium perchlorate , materials science , corrosion , chemistry , electrochemistry , metal , inorganic chemistry , analytical chemistry (journal) , metallurgy , chromatography , electrode , composite material , organic chemistry
It has been shown by means of a potentiostatic technique that both the anodic and the cathodic behaviour of steel are inhibited in an aqueous red lead slurry with 0.1 M sodium perchlorate as supporting electrolyte. The oxygen reduction on the cathode takes place at a slower rate in the slurry than in the pure electrolyte solution. According to scanning electron microscopy with microprobe analysis and Guinier X‐ray diffraction phase analysis, the layer formed on the cathode at about −1100 mV consisted of metallic lead deposited from solute lead species. At more negative potentials and unidentified phase appeared.