PETROLATUM LIQUIDUM—LIQUID PETROLATUM
Derivation.—A mixture of hydrocarbons, chiefly of the marshgas series, obtained by distilling off the lighter and more volatile portions from petroleum and purifying the residue when it has the desired consistence.
Properties.—A colorless, or more or less yellowish, oily transparent liquid without odor or taste; or giving off, when heated, a faint odor of petroleum. Insoluble in water; scarcely soluble in cold or hot alcohol, or cold absolute alcohol; but soluble in ether, chloroform, carbon disulphide, oil of turpentine, benzine, benzol and fixed and volatile oils.