The reaction chemistry of micronized copper wood preservatives is fundamentally different from any previous inorganic preservative system. In order to study the chemistry, analytical procedures had to be developed which allowed the determination of the total copper as well as the copper which reacted with the wood forming copper-wood complexes. With the success of this approach it also became possible to examine other copper treated wood (including amine copper quat treated wood) and measure the amount of precipitated copper carbonate formed during the “fixation” process. The broader question of the role of this precipitated copper in protecting wood as found in many copper preservative treatments is considered. Two in service aspects, soil and fungal interaction, were evaluated.

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