Coral, Red (Facti′′tious). Syn. Coral′lium ru′brum facti′′tium, L. Prepared chalk, coloured with a little sesquioxide of iron or rose pink, and passed through a sieve. Sold by the druggists for powdered coral.
Coral, Prepared’ Red. Syn. Coral′lium ru′brum prepara′tum. Levigated coral was formerly used in medicine as an antacid or absorbent, and is still occasionally employed as a dentifrice. It consists almost entirely of carbonate of lime, coloured with red oxide of iron, and possesses no advantage over good chalk. It is prepared in a similar manner as chalk.
CORAL, to Bleach. Immerse the coral in a mixture composed of one part of hydrochloric acid, and thirty parts of water; and keep it in this liquid until it becomes quite white. It should then be taken out, washed well in cold water, and allowed to dry.
COPPER, CYANIDE (CuCy2). This salt is much used in electro-coppering. It may be obtained by adding to a solution of a copper salt, a solution of ferrocyanide of potassium; when a precipitate is obtained, which dried, is of a brown colour, and is cyanide of copper.
CORALLINE. See Tar Colours.
CORD′IALS. Syn. Cardi′aca, L. Warm, stimulating, restorative medicines, that tend to raise the spirits and promote the circulation. The principal cordial medicines are noticed under the heads Tincture and Syrup. See also Patent Medicines.
Cordials. Aromatised and sweetened spirits used as beverages. See Liqueur.
CORIAN′DER. Syn. (Coriander fruit, Coriandri fructus, (B. P.); Corianders, C. seed; Coriandrum (Ph. L. E. & D.), L. “The ripe fruit of the Coriandrum sativum, dried.” (B. P.) Coriander is chiefly used by confectioners and distillers as a flavouring ingredient. In the East it is much employed as a condiment, being an ingredient in CURRY POWDER. It is aromatic, carminative, and stimulant; and more effectually covers the taste of senna than any other substance.—Dose, 20 to 60 gr.; chiefly used as a corrective or adjuvant in compound medicines.
CORK. The outer bark of the Quercus Suber or cork oak, a tree common in southern France, Italy, and Spain. The bark obtained from the younger branches of the same tree is employed for tanning. See Alcornoco.
Cork. A stopple or plug for a bottle or jar cut from the above substance. The common practice of employing inferior corks for the purpose of stopping the mouths of bottles is often productive of considerable loss, from the air being only partially excluded, and the contents suffering in consequence. Many a large bin of valuable wine has become, from this cause, in less than a year, little better than sour ‘Cape.’ Chemical preparations often suffer from a similar cause. The best corks are those called ‘velvet corks,’ and of these the finest qualities are imported from France. No pains should be spared to obtain sound and soft cork for connecting the combustion- and drying-tubes used in organic analysis.