Alcohol denaturants diethyl phthalate

Some of the denaturants in laboratory use ethanol are cyclohexane (1%) isopropyl alcohol ( 5%) diethyl phthalate (1%) toluene (1-2%) 2-butanone (methyl ethyl ketone) (2%) a mixture of 2-butanone and 4-methyl-2-pentanone (methyl isobutyl ketone) (2% and 0.5%, respectively) methanol (5%), designated SDA Formula 3 ethyl acetate and gasoline (5% and 1%, respectively), designated SDA Formula 1 ethyl acetate, 4-methyl-2-poitanone, and gasoline (each at 1%), designated SDA Formula 1-1 ethyl acetate and methanol (1-2% and 3-5%, respectively) 4-methyl-2-pentanone and ko osene (4% and 1%, respectively), designated Formula CDA 19 and isopropyl alcohol and methanol (5% each). Note that many other denatured ethanols (e.g., bitrex and menthol denatured) are available, typically for use in personal care and cosmetic products. 

Diethyl phthalate is also used as an alcohol denaturant and as a solvent for cellulose acetate in the manufacture of varnishes and dopes. In perfumery, diethyl phthalate is used as a perfume fixative at a concentration of 0.1-0.5% of the weight of the perfume used. 

Classification Specially denatured alcohol Definition Ethyl alcohol (100 gal) denatured with t-butyl alcohol (1/8 gal) and diethyl phthalate (2.5 gal)... 

Butyl alcohol Menthol denaturant, alcohol Acetonitrile t-Butyl alcohol Citronella (Cymbopogon nardus) oil Crotonaldehyde Diethyl phthalate... 

This refers to ethyl alcohol, which is made unfit for drinking, though its usefulness for other purposes is not affected. The following are some of the most commonly used denatur-ants methanol, camphor, amyl alcohol, gasoline, isopropanol, terpineol, benzene, castor oil, acetone, nicotine, aniline dyes, ether, pyridine, cadmium iodine, sulfuric acid, kerosene, and diethyl phthalate. These may be used either alone or in combination. One of the prime reasons for denaturing ethyl alcohol is taxation purposes. 

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