Home › Solutions › Compound Solution of Alum

Compound Solution of Alum

Rub together 1 ounce cach alum and sulphate of zinc; dissolve in 3 pints boiling water. If necessary, filter. This is detergent and astringent, and is used as a lotion for old ulcers, excoriations &c.; and, largely diluted with water, as an eye-wash and injection. 4773. Solution of Ammonio-Nitrate of Silver. Dissolve 44 grains pure crystallized nitrate of silver in 1 fluid ounce distilled water; add gradually ammonia water until the precipitate at first thrown down is very nearly, but not entirely, redissolved. This solution is used as a test for arsenious acid, in combination with which it forms a yellow precipitate, arsenite of silver. 4774. Solution of Chloride of Barium. Dissolve 1 drachm chloride of barium in 1 fluid ounce water, and filter the solution.

Dose, 5 drops, gradually increased to 10 or 1.2 drops, 2 or 3 times a day, for scrofula, sciwhich is more expeditious and convenient rhous affections, and worms. Is used externa!than the plan commonly followed. He mixes lv, largely diluted, as a lotion in scrofulous oph.the tar with sand, previously washed and tealmia; also as a test for sulphuric acid and dried, throws the mixture into a percolator, the soluble sulphates, in contact with which it and shakes the instrument gently to secure makes a heavy white precipitate, insoluble proper adjustment of the mixture. Water is in either hydrochloric or nitric acid. It is 5 said to detect the presence of Tobus part of 4784. Liquor of Potassa; Solution sulphuric acid. 4775. Solution of Diacetate of Lead boiling distilled water; use sufficient of this to of Potash; Soft-Soap Lye. Take 1 gallon -sometimes called Extract of Lead. Boil 27 slack 8 ounces recently burnt lime in an ounces acetate of lead, and 16 ounces finely earthen vessel; in the remainder of the wapowdered litharge, in 3 quarts water for an ter dissolve 15 ounces carbonate of potassa, hour, constantly stirring; then add sufficient and add the slacked lime. Cork the mixture distilled water to make up 3 quarts. If re- closely in a vessel, and shake it frequently unquired, filter, and keep in a closed vessel. til cold, then allow it to settle and decant the This solution is almost the same in strength clear liquid into clean, well-stoppered greenand preparation as the solution of subacetate glass bottles. Liquor of potassa is antacid, of lead of the U. S. Pharmacopœia. diuretic, and resolvent. In indigestion, acid