quinine sulphates

pl. Chem.: The neutral or common medicinal sul phate, 2C20H24N2O2 H2SO4+H2O, is prepared by neutralizing quinine with dilute sulphuric acid. It crystallizes in long flexible monoclinic needles, having a nacreous aspect, almost insoluble in cold water, but soluble in boiling water, in alcohol, and in dilute sulphuric acid; insoluble in ether, chloroform, and petroleum spirit. The solution of quinine sulphate in water, acidulated with sulphuric acid, exhibits a powerful blue fluorescence, and turns the plane of polarization of a ray of light strongly qui-năn-a-mide, subst. [Eng. quin on (e), and amide.] Chemistry: C6H5NO. A crystalline substance, of emerald green color, formed by the action of dry ammonia on quinone, C6H4O2+NH3=C6H5NO+ H2O. It is soluble in water, but quickly decomposes, yielding a dark-colored solution. qui-none', s. [Eng. quin (oyl); -one.] qui-non-ic, adj. [Eng. quin on (e); -ic.] Contained in, or derived from quinone. IMG:content-0117.png:[blocks in formation] Chem.: C42H30035(7). Cinchona tannic acid. One of the tannic acids found in cinchona barks. It forms a yellow, friable, hygroscopic ma , soluble in water, alcohol, and ether, the ethereal solution being almost colorle . Its aqueous solution, when exposed to the air, rapidly absorbs oxygen and deposits cinchona red. It unites with bases, forming salts which are very unstable and of little importance. It colors ferric salts green, and produces an abundant yellowish precipitate with tartar emetic. qui-nô-va, adj. [See def.] Contained in, or derived from Cinchona nova. quinova-bitter, s. [QUINOVIN.] quinova-sugar, s. Chemistry: C6H12O8. A saccharine substance obtained by pa ing hydrochloric acid gas into an alcoholic solution of quinovin, filtering, neutralizing filtrate with sodic carbonate, again filtering, and evaporating the liquid to dryne at 100°. is an uncrystallizable, hygroscopic body with a slightly bitter taste, and resembles mannitan more than any other kind of sugar. qui-nō-va-tăn-nic, a. [Eng. quinova, and tan nic.] A term applied to the tannic acid of Cinchona nova. chin, bench; go, gem; thin, this; sin, aş; expect, Xenophon, exist. ph = f. IMG:content-0118.png:[blocks in formation] quinovic-acid, s.