A colorless, odorless, syrupy liquid having a strongly acid taste. Miscible with water. Incompatible with alkalies, alkali carbonates, ferric chloride, lead acetate and solutions of lime. ACTION AND USES: Similar to those of hydrochloric acid. Has none of the therapeutic properties of free phosphorus. _Acidum Phosphoricum Dilutum (Acid. Phos. Dil.), Diluted Phosphoric Acid, U.S.P._--H{3}PO{4} (about 10%). DOSAGE: 2 Cc. or 30 minims (U.S.P.), diluted. _Liquor Phosphatum Acidus (Liq. Phos. Acid.), Acid Solution of Phosphates, N.F._ (Solution of Acid Phosphates).--Made by dissolving precipitated calcium carbonate (5%) in phosphoric acid and water. DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). _Liquor Phosphatum Compositus (Liq. Phos. Co.), Compound Solution of Phosphates, N.F._--Phosphates of calcium, iron, ammonium, potassium and sodium in citric acid, glycerin, orange flower water and water. _Syrupus Phosphatum Compositum (Syr. Phos. Co.), Compound Syrup of the Phosphates, N.F._ (Chemical Food).--Compound solution of phosphates (50%), colored with tincture of cudbear, in glycerin and syrup. USES: Antiquated and irrational "tonic." DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). _Syrupus Phosphatum cum Quinina et Strychnina._--See under =Quininae Hydrochloridum=. =Acidum Picricum, Picric Acid.=--See =Trinitrophenol=. =*Acidum Salicylicum (Acid. Salicyl.), Salicylic Acid, U.S.P.=--C{6}H{4}(OH)COOH. A white, odorless powder, tasting first sweetish, subsequently acrid. Slightly soluble in water (1:460), freely soluble in alcohol (1:2.7) and in ether. Incompatible with solutions of iron and with spirit of nitrous ether. ACTION AND USES: Antirheumatic, antiseptic, germicide and keratolytic. DOSAGE: Internally 0.75 Gm. or 12 grains (U.S.P.) best given in the form of soluble salicylates (see =Sodii Salicylas=). Externally in 10 per cent. ointment as a keratolytic. _Collodium Salicylici Compositum (Collod. Salicyl. Co.), Compound Salicylic Collodion, N.F._--Salicylic acid (1.1%) and flexible collodion colored with fluidextract of cannabis. USES: A popular application for softening corns. The cannabis can play no rôle beyond that of coloring agent. _Glycerogelatinum Acidi Salicylici (Glycerogel. Acid. Salicyl.), Salicylic Acid Glycerogelatin, N.F._--Salicylic acid (10%), in water, glycerin and glycerinated gelatin. _Mulla Acidi Salicylici (Mull. Ac. Salicyl.), Salicylic Acid Mull, N.F._ (Unguentum Salicylatum Extensum, N.F. III).--Salicylic acid (10%), in benzoinated suet and benzoinated lard. _Mulla Creosoti Salicylata (Mull. Creosot. Salicyl.), Salicylated Creosote Mull, N.F._ (Unguentum Creosoti Salicylatum Extensum, N.F. III).--Salicylic acid (10%), and creosote (20%) in yellow wax and benzoinated suet. _Pulvis Talci Compositus (Pulv. Talc. Co.), Compound Powder of Talc, N.F._ (Boro-Salicylated Powder of Talc).--Salicylic acid (3%), boric acid (10%) and talc.