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Naphthenic acid is a complex of carboxylic acids (various
low-molecular-weight fatty acids, believed to have Cyclopentane ring
mainly.) obtained as a by-product of petroleum refining; with a
variable composition and ingredients; generally 180 - 350 mole wt. It is
used in deicing, dust control, wood preservative and road stabilization.
Naphthenic acid and metallic naphthenates have industrial applications
in synthetic detergents, solvent additives for paint, varnish, oils and
resins. They are used as lubricants, corrosion inhibitors and fuel
additives. They are used as wood preservatives; catalysts;
insecticides; wetting agents; lubricating oil additive.
Paint driers are substances put into paint to make
dry quickly. They are metallic salts of low-molecular-weight (chiefly
C8) fatty acids or naphthenic acids. Naphthenic acid is a complex of
carboxylic acids (various low-molecular-weight fatty acids believed to
have Cyclopentane ring mainly). Hydrocarbon parts take oxygen in air and
metals act as catalyst to speed up the oxidative coating. Cobalt is the
most useful. It is a powerful oxidation catalyst and can keep whiteness.
Auxiliary metals should be added to prevent surface wrinkling after
drying. Primary metals, which can replace for cobalt, are zirconium,
lead, cerium and iron and auxiliary metals are like calcium, manganese,
barium, zinc, and lithium.
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