C7H602 BENZOIC See also:

• ACID (from the Lat. root ac-, sharp; acere, to be sour)

ACID  or CsHSO00H, the simplest representative of the aromatic acids . It occurs naturally in some resins, especially in See also:

• GUM (Fr. gomme, Lat. gommi, Gr. Kµµ1, possibly a Coptic word; distinguish " gum," the fleshy covering of the base of a tooth, in O. Eng. gbma, palate, cf. Ger. Gaumen, roof of the mouth; the ultimate origin is probably the root gha, to open wide, seen in

gum See also:

• BENZOIN

benzoin (from Styrax benzoin), in See also:

• DRAGON (Fr. dragon, through Lat. draco, from the Greek; connected with SEpeoµay " see," and interpreted as " sharp-sighted "; O.H. Ger. tracho, dracho, M.H.G. trache, Mod. Ger. Drachen; A.S. draca, hence the equivalent English form " drake," " fire-drake,

dragon's See also:

• BLOOD

blood, and as a benzyl ester in See also:

• PERU
• PERU (apparently from Biru, a small river on the west coast of Colombia, where Pizarro landed)

Peru and Tolu balsams . It can be prepared by the oxidation of See also:

• TOLUENE, or METHYLBENZENE

toluene, benzyl See also:

• ALCOHOL

alcohol, See also:

• BENZALDEHYDE (oil of bitter almonds), C6H5CHO

benzaldehyde and cinnamic See also:

• ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid; by the oxidation of See also:

• BENZENE, C6H6

benzene with See also:

• MANGANESE (symbol Mn; atomic weight, 54.93 (0=16)], a metallic chemical element. Its dioxide (pyrolusite)

manganese dioxide and concentrated sulphuric acid in the See also:

• COLD (in O. Eng. cald and ceald, a word coming ultimately from a root cognate with the Lat. gelu, gelidus, and common in the Teutonic languages, which usually have two distinct forms for the substantive and the adjective, cf. Ger. Kolte, kalt, Dutch koude

cold (L . Carius, See also:

• ANN

Ann . 1868, 148, p . 51); by See also:

• HYDROLYSIS (Gr. 6Swp, water, Anew, to loosen)

hydrolysis of benzonitrile or of hippuric acid; by the See also:

• ACTION

action of See also:

• CARBON (symbol C, atomic weight 12)

carbon dioxide on benzene in the presence of See also:

• ALUMINIUM (symbol Al; atomic weight 27.0)

aluminium chloride (C . See also:

• FRIEDEL, CHARLES (1832-1899)

Friedel and J . M . Crafts, Ann. chim. phys . 1888 [6], 14, p .