copper naphthenate
A green cupric salt of naphthenic acid and copper,
with the combined fungicidal properties of
naphthenic acid and copper. It is practically
non-volatile and is used in a 0.1% concentration
to control the growth of molds and fungi. There is
some risk involved in its use because its presence
in paper increases the liability of the paper to
damage in a polluted atmosphere, possibly due to
the catalytic action of the copper with regard to
sulfur dioxide, resulting in the formation of
sulfuric acid. (198
)
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