Naphthenic acid — Copper naphthenate

NAPHTHENIC ACID, COPPER SALT (1338-02-9) Forms explosive mixture with air (flash point 100°F/38°C). Violent reaction with strong oxidizers, strong acids. Mixtures with... 

Synonyms CNC Naphthenic acid copper salt Definition Copper salt of petroleum naphthenic acids Empirical C13H25CUO2... 

Naphthenic acid copper salt. See Copper naphthenate Naphthenic acid lead salt. See Lead naphthenate Naphthenic acids. See Naphthenic acid Naphthenic acids, cadmium salts. See Cadmium naphthenate Naphthenic acids, calcium salts. See Calcium naphthenate Naphthenic acid zinc salt. See Zinc naphthenate... 

Naphthenic acid copper salt. See Copper naphthenate... 

Naphthenic acid copper salts — Copper naphthenate Copper content 14-15% CAS-No. 1338-02-9... 

Copper quinolinolate (oxine copper) is the chelate of divalent copper and 8-hydroxyquinoline and shares most of its market with copper naphthenate, which is a complex copper salt of mixed naphthenic acids. The principal uses are in wood treatments and some military textiles, where the green color is not objectionable. Copper naphthenate has an odor but is cheaper than oxine. Both copper naphthenate and 2inc naphthenate have performed well in environment tests, with exposure to soil above-ground, as well as concrete (33). 

More than two-thirds of the naphthenic acid produced is used to make metal salts, with the largest volume being used for copper naphthenate, consumed in the wood preservative industry (see Wood). Metal salts used as paint driers accounted for only 16% of the naphthenic acid market in 1993 (see Paint). This is a dramatic contrast with 1977 usage, when 75% of the naphthenates went into the paint drier market. An overall view of the 1993 naphthenic acid market in North America shows the following uses ... 

Naphthenic acid from petroleum continues to be of interest as a material for making copper naphthenate and wood preservatives for use in greenhouses and the like. Naphthenic acids occur naturally to the highest extent in naphthenic crude oils, certain of which are stated to contain over 1% total naphthenic acid. As yet these meterials have not reached wide acceptance in agricultural pest control. 

REPELLENT. 1. A substance that causes and insect of animal to turn away from it or reject it as food. Repellents may be in the form of gases (olfactory), liquids, or solids (gustatory). Standard repellents for mosquitos, ticks, etc., arc dtronella oil, dimethyl phthalatc, w-butylmcsityl oxide oxalate, DEET, and 2-ethyl hexanediol-1,3. Actidione is the most effective rodent repellent, but is too toxic and too costly to use. Copper naphthenate and lime/sulfnr mixtures protect vegetation against rabbits and deer. Shark repellents are copper acetate or formic acid mixed with ground asbestos. Bird repellents are chiefly based on taste, but this sense varies widely with the type of bird so that generalization is impossible. G -Naphthol, naphthalene, sandalwood oil, quinine, and ammonium compounds have been used, with no uniformity or result. 

Copper Naphthenate (formula indefinite)tgr-blue solid, sol in gasoline oils. Can be prepd by adding a soln of Cu(H) sulfate to soln of Na naph-thenate, which is the most common salt of naphthenic acid (Ref 1). See also under Cobalt Naphthenate and Ref 3... 

Oxidation of individual hydrocarbons may be exemplified by the work of Medvedev (232) who has been studying these reactions for a number of years and has more recently investigated the effect of oxygen on polymerization reactions. Neutral phosphates of aluminum, tin or iron, tin borate, etc., were found to be suitable for the conversion of methane to formaldehyde at 500°C. A practical aspect of this research is represented by the homogeneous oxidation of petroleum stocks in the presence of naphthenates which was developed by Petrov into an industrial process to supply fatty acids for the soap making and grease making industry (298,299). Kreshkov oxidized methane to formaldehyde in the presence of chlorine and steam over chlorides of copper or barium or over vanadium pentoxide on carbon (179), but his yields were low. 

Straight-chain alkyl carboxylic acids derived from petroleum that also have a terminal cyclohexyl or cyclopentyl group are known as naphthenic acids. They form complexes, presumably polymeric, with many transition metals, and these compounds are freely soluble in petroleum. Copper naphthenates are used as fungicides, aluminum naphthenate was used as a gelling agent in napalm, and cobalt naphthenates are used in paints. 

Fundamental studies have been reported using the cationic liquid ion exchanger di(2-ethylhexyl) phosphoric acid in the extraction of uranium from wet-process phosphoric acid (H34), yttrium from nitric acid solution (Hll), nickel and zinc from a waste phsophate solution (P9), samarium, neodymium, and cerium from their chloride solutions (12), aluminum, cobalt, chromium, copper, iron, nickel, molybdenum, selenium, thorium, titanium, yttrium, and zinc (Lll), and in the formation of iron and rare earth di(2-ethylhexyl) phosphoric acid polymers (H12). Other cationic liquid ion exchangers that have been used include naphthenic acid, an inexpensive carboxylic acid to separate copper from nickel (F4), di-alkyl phosphate to recover vanadium from carnotite type uranium ores (M42), and tributyl phosphate to separate rare earths (B24). 

Copper Naphthenate. When naphthenic acids are neutralized with alkali, they react with a number of metal salts to form naphthen-ates. Because of its fungicidal properties, copper is normally the metal used. The naphthenic acids 2 are structurally variable (3). The... 

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