High Quality Content by WIKIPEDIA articles! An oil drying agent is a chemical compound that speeds up the hardening (catalyzes) of drying oils through chemical crosslinking via affecting the autoxidation of the oils with air. Typical oil drying agents are derived from cobalt, manganese, and iron and lipophilic carboxylic acids such as naphthenic acids to make them oil-soluble. Such agents are called salts, but they are probably non-ionic coordination complexes akin to basic zinc acetate. Japan drier is a common lay term and generic product name for any oil drying agent that can be mixed with drying oils such as boiled linseed oil and alkyd resin paints to speed up "drying". In chemistry, a coordination complex or metal complex, is a structure consisting of a central atom or ion (usually metallic), bonded to a surrounding array of molecules or anions (ligands, complexing agents). The atom within a ligand that is directly bonded to the central atom or ion is called the donor atom. Polydentate (multiple bonded) ligands can form a chelate complex.

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