Fine, bulky, white, tasteless powder, having a faint characteristic odor. Insoluble in water or alcohol. ACTION AND USES: Similar to, but without special advantage over zinc oxide. _Unguentum Zinci Stearatis (Ung. Zinc. Stear.), Ointment of Zinc Stearate, N.F._--Zinc stearate (50%) in white petrolatum. USES: Without advantage over the oxide. =*Zinci Sulphas (Zinc. Sulph.), Zinc Sulphate, U.S.P.=--ZnSO{4} + 7H{2}O. Colorless, transparent crystals or granular powder, odorless and having an astringent, metallic taste. Very soluble in water (1:0.6) and freely soluble in glycerin (1:2.5); insoluble in alcohol. ACTION AND USES: Astringent, styptic and emetic. Much used in eye washes and especially effective in that form of conjunctivitis caused by the Morax-Axenfeld bacillus. DOSAGE: Emetic, 1 Gm. or 15 grains (U.S.P.) in diluted solution. Locally, 0.1 to 1 per cent. in collyria; 0.5 to 4 per cent. in injections (gonorrhea). _Liquor Zinci et Alumini Compositus (Liq. Zinc. et Alumin. Co.), Compound Solution of Zinc and Aluminum, N.F._--Zinc sulphate (20%), aluminum sulphate (20%), betanaphthol (0.06%) with oil of thyme in water. USES: Needlessly complex astringent and antiseptic. _Liquor Zinci et Ferri Compositus (Liq. Zinc. et Ferr. Co.), Compound Solution of Zinc and Iron, N.F._ (Deodorant Solution).--Zinc sulphate (20%), ferrous sulphate (20%), copper sulphate (6.5%), betanaphthol (0.06%) with oil of thyme and hypophosphorous acid in water. USES: Needlessly complex antiseptic mixture. _Pulvis Antisepticus (Pulv. Antisept.), Soluble Antiseptic Powder, N.F._ (Pulvis Antisepticus Solubilis).--Zinc sulphate (12.5%), salicylic acid (0.5%), phenol, eucalyptol, menthol and thymol (each 0.1%) and boric acid. USES: Needlessly complex antiseptic mixture. =Zinci Valeras (Zinc. Valer.), Zinc Valerate, U.S.P.= (Zinc Valerianate). White scales or powder, having a valerian-like odor and a sweetish, astringent, metallic taste. Soluble in water (1:70), often leaving a residue, and in alcohol (1:22). ACTION AND USES: Formerly deemed a "nerve sedative," but is without value. DOSAGE: 0.125 Gm. or 2 grains (U.S.P.). _Elixir Zinci Valeratis (Elix. Zinc. Valer.), Elixir of Zinc Valerate, N.F._ (Elixir Zinci Valerianatis, N.F. III).--Zinc valerate (1.75%), ammonium citrate, alcohol, spirit of bitter almond, compound tincture of cudbear, water and aromatic elixir. Absolute alcohol content about 28 per cent. DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). =Zincum (Zinc.), Zinc, U.S.P.=--Zn. Bluish-white, thin sheets, irregular, granulated pieces, molded pencils or powder. Insoluble in water or alcohol, but dissolves in diluted sulphuric or hydrochloric acid with the evolution of hydrogen. ACTION AND USES: Reagent for the generation of hydrogen. =*Zingiber (Zingib.), Ginger, U.S.P.=--Rhizomes.