MANNITE

n. Ma"n'it. Lat, mannita [Fr. Cod.], mannitum [Hung. Ph.]. Fr.,m. Ger., Mannit. It., m. Sp.,manito. Syn.: mannamtgar. An hex atomic alcohol,CH14O = Cg H8(OH)s =CHS(OH)- CH(OH) CH(OH) CH(OH) CH(OH) CHa( OH), occurring in the form of very sweet acicular or prismatic crystals derived from the sap of Fraxinus ornus (manna) and of apple and cherry trees, from various species of Fungi and Algae, from the bulbs of several varieties of vegetables, from the leaves of Syringia vulgar is and Ligustrum vulgare, and from other plants and trees. It is found in dogs' urine, especially after the prolonged ingestion of morphine. M. melts at 166 C. [B, 4; B, 3, 270 (a, 38); M. Jaffe, "Ztschr. f. phys. Chem.," vii, p. 297.] See also HEXONE alcohol. Anhydrous in., M. anhydride. See MANNITAN. M. dibromhydrin. A substance, CH8(OH)4Bra, forming large colorle foliate crystals insoluble in cold water, and melting at 174 C. [B, 270 (o, 38).] M. dichlorhydrin. See HEXONE dich lor hydrate. M. ether. An amorphous, sticky substance, (C4H,3OB).,O, obtained, along with 1 1 ia 1 1 1 1 it 1 11 1,. by heating m. with water in sealed tubes. [B, 270 (a, 38); "Proc. of the Am. Pharm. A oc.," xxv (a, 39).] M. formate. Fr., m. formique. An unstable substance, C8H8(OH)4(COOH)o. [B, 93 (o, 38).] M. hex acetate. Fr., m. hexacetique. Ger., M'- e igester. A substance, CgHglCjHsOjtg, crystallizing in white kernels, soluble with difficulty in cold water, more easily soluble in boiling water and in alcohol, and melting at 100 C. [B, 93, 270 (a, 38).] M. hex a benzoate. Fr., m. hexabenzo'ique. The compound CgHgfCTHOV [B, 93 (a. 38).] M. nitrate. See NITRO MANNITE. M.-sulpiHiric acid. Ger., Mannitschwefelsaure. A substitution compound of m. and sulphuric acid. M.-disulphuric acid (Ger., Mannitdischwefelsdure), CH, ^O^SOiH)*, and m.-tri sulphuric acid (Ger., Mannittrischioefelsti.ure), CgH,,O8(SO4H)S, are obtained by di olving m. in strong sulphuric acid; m.-tetra sulphuric acid (Ger., Mannittetraschwefelsdure) and m.-hex a sulphuric acid (Ger., Mannithexaachwefelsdure), CH8(HSO4)g, have also been isolated. [B, 4; B, 270 (o, 38).] [s. 710]