Abstract
SummaryUsing HE9 material (an aluminium—magnesium silicon alloy) the anodic reactions of a number of water-soluble organic caboxylic acids not generally described in the literature are summarized, with and without small additions of oxalic acid. The electrolytic processes are related to the strength (conductivity and acidic dissociation constants) of the acid electrolytes, both singly and in combination with oxalic acid, together with the general chemical properties of the ionic species involved. The reason for the production of integrally coloured coatings using some of the electrolytes is discussed and the properties of some of the thicker films obtained summarized.
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