Category:Creosote

Cre"o*sote (kr"-st), n. Etym: [Gr. (Chem.)

Defn: Wood-tar oil; an oily antiseptic liquid, of a burning smoky taste, colorless when pure, but usually colored yellow or brown by impurity or exposure. It is a complex mixture of various phenols and their ethers, and is obtained by the distillation of wood tar, especially that of beechwood.

Note: It is remarkable as an antiseptic and deodorizer in the preservation of wood, flesh, etc., and in the prevention of putrefaction; but it is a poor germicide, and in this respect has been overrated. Smoked meat, as ham, owes its preservation and taste to a small quantity of creosote absorbed from the smoke to which it is exposed. Carbolic acid is phenol proper, while creosote is a mixture of several phenols. Coal-tar creosote (Chem.), a colorless or yellow, oily liquid, obtained in the distillation of coal tar, and resembling wood-tar oil, or creosote proper, in composition and properties.

creosote Cre"o*sote, v. t. [imp. & p. p. Creosoted (-s"td); p. pr. & vb. n. Creosoting.]

Defn: To saturate or impregnate with creosote, as timber, for the prevention of decay.