Abstract

Thirteen organic compounds capable of forming chelate complexes were used to fix copper in cotton duck. Their rotproofing effectiveness was then determined by the loss in tensile strength during soil burial. The compounds tested were, in order of decreasing effectiveness, cupferron, 8-hydroxyquinoline, 1-nitroso-2-naphthol, dimethylglyoxime, salicylaldoxime, glucose oxime, diphenyl-thiocarbazone, rhodanine, benzoin oxime, s-diphenylcarbazide, acetoin oxime, and fructose oxime. Copper complexes formed with cupferron and 8-hydroxyquinoline possessed rot resistant properties far superior to those of copper naphthenate or any of the other compounds tested.

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