-succ

-Ufl

Adulterated with an alcuholic solution of balsam of Tolu, and even withinferior resins and gums.Styrax Purificata. D. Purified Storax. Digest the storax in mo-derately warm water, till it be softened, then express it between ironplates, heated by boiling water, and separate it from the water.Sub is a prepositive added to the names of chemical preparations, andsignifies tender. It is opposed to Pek. Thus we have subacetate oflead, subcarbonate of potass, sub-borate of soda, submuriate of mer-cury, and subnitrate of bismuth. See jErugo, Ammonite, Bis-muthi, Ferri, Hydrargyri, Magnesia, Potassjr, Plumbi,Sod^;, &c.Suberic Acid is procured by treating cork with nitric acid. It is so-luble in boiling water. With alkaline bases it forms suberates.Suberin. The substance constituting the basis of cork. (Chevreuil.)Sublimate (Corrosive). See Hydrargyri Oxymur.Sub-murias Hydrargyri. See Hydrarg. Sub-muk.Sub-murias Hydrargyri Precipitatus. E. Precipitated Submu-riate of Mercury, or White Precipitate. Calomelas Prwcipitaius. D.Murias hydrargyri sub-oxygenatus prcecipilatione paratus. P. Take3viij of purified mercury, Jv of diluted nitric acid, §iv of muriate ofsoda, and Ox of boiling water; dissolve the mercury in the acid,pour it on a solution of the muriate of soda. Wash the precipitatewith hot distilled water, and dry it.Medicinally it is alterative and antisyphilitic, in doses of gr. j to ^ss.It only differs from calomel in being more finely powdered, and isconsequently better for preparing ointments.Sub-sulphas Hydrargyri Flavus. E. P. Yellow Subsulphate ofMercury. Turpeth mineral. O. Take ftj of purified mercury, ibjssof sulphuric acid; dissolve the mercury in the acid, and heat it gra-dually till dry, leave it to cool, and reduce it to powder, pour over itsome hot water, collect the yellow precipitate which falls, wash itwith hot distilled water, and dry.Soluble in 2000 parts of cold water, and in 600 parts of boiling

water.Medicinally it is a violent emetic, and is given for swelled testicle, andother venereal affections, in doses of gr. j to gr. iv, or even gr. viij instrong subjects. It is, however, seldom employed. As an errhinefor amaurosis, and chronic ophthalmia, it may be mixed in the pro-portion of gr. 4 or more, with eight times its weight of liquorice-powder, or with Makum, and other errhines. (Dr. Hope.)Succinic Acid. See Acidum Succinicum.

Succinum. L. E. D. P. Amber. It is found chiefly on the shores of theBaltic, and is probably a vegetable product, as it contains resin and

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