PHENOL

n. Fe2n'o2l. Lat., phenolum. Fr., phenol [Fr. Cod.]. Ger.. P. Phenyl alcohol, carbolic acid, C6H6OH (see CARBOLIC acid and ACIDUM CARBOLICUM). As a generic term, this includes the homologues of ordinary p., and, in general, all the aromatic compounds in which hydroxyl replaces hydrogen which is in immediate combination with a carbon atom of the benzene nucleus. The p's are monatomic, diatomic, or triatomic, according as one, two, or three atoms of hydrogen are replaced by one, two, or three molecules of hydroxyl. The chief monatomic p's are ordinary p., cresol, ethyl-p., phlorol. xylenol, thymol, and carvacrol; the chief diatomic p's, pyrocatechin, resorcin, hydroquinone, orcin, iso-orcin, homo pyrocatechin, hydrochlorphlorone, and thymhydroquinone; and the chief triatomic p's, pyrogallol and plilorglucol. [B.] Camphorated p. See CAMPHOR A carbo lis at a. Cymic p. See CARVACROL. P. blue. A coloring matter, C]4HI4- N2O, occurring in commerce in the form of paste. [B, 3 (a, 38).] P'glucoside. A substance. C6H1 iOB(OCBH5), crystallizing from water as concentrically grouped needles, melting at about 172 C. It is the simplest known glucoside, and the first that was prepared artificially. [B, 3 (a, 38).] P'glycerit (Ger.). See Glyceritum ACIDI CARBOLIC I. P's aure (Ger.). See CARBOLIC acid. P's ulphonic acid. Ger., P's ulfonsdure. An acid, C6H4OHSO2OH, formed by the action of sulphuric acid on p. Three isomeric varieties are known orthop^sulphonic acid (see ASEPTOL), metap''sulphonic acid, occurring in fine acicular crystals, and parap's ulphonic acid, occurring as a syrup. [B; B, 3 (a, 38).] P's ulphuric acid. Ger., P's chwefelsdure. An acid, C20H26O14S. Its barium salt is found in the urine after the ingestion of phenetol. [Ko ell, "Ztschr. f. physiol. Chemie," vii, 292 (B).] PHENOL [Fr. Cod.] (Fr.), n. Fa-no2l. See PHENOL. [B.] P. sode di ous [Fr. Cod.]. See Liquor NATRI carbolic i. [s. 254]