metal salts of carboxylic acids, have industrial applications in;
Drier/Additive for paints, coatings and inks; 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, lithium.
Catalyst for chemical
reactions (polymerization, esterification, oxidation, condensation,
hydrogenation and other reactions) and catalystic special applications in
lubricant and grease additives, fuel combustion additives to enhance and
stabilize the performance of fuels.
Rubber Adhesion Promoters ; Metallic
naphthenates, neodecanoates, resinates, boroneodecanoates, and stearates are
widely used in rubber industry especially in the radial tire industry to promote
adhesion between the rubber wire coat compound and the brass-coated steel belt.
Cobalt carboxylates are most widely used.
Polyurethane catalysts: Tin,
bismuth, mercury, zinc carboxylates and their blends with amines are used as
catalysts in the production of rigid, flexible polyurethanes and elastomers.
Unsaturated Polyester Promoters: Cobalt, Potassium, Copper, and Zinc
carboxylates (mainly octoates and naphthenates) are used as initiators/promoters
for curing of polyester resins.