The British pharmacopoeia

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...added to an excess of diluted hydrochloric acid. Mixed with an equal volume of distilled water, it gives 1 The strength is about 1 in 100. It was 1 in 109 in B. P. 1867. no precipitate with solution of lime or oxalate of ammonium. When it is treated with an excess of diluted nitric acid and evaporated to dryness, the residue forms with water a clear solution which is only slightly precipitated by chloride of barium or by nitrate of silver, and not at all by ammonia. Acidified by hydrochloric acid, the solution is unaffected by sulphuretted hydrogen. One fluid ounce contains 18'8 grains of hydrate of sodium. LIQUOR CHLORINATE. Solution of Chlorinated Soda. Take of Chlorinated Lime 16 ounces Carbonate of Sodium....24 ounces Distilled Water 1 gallon Dissolve the carbonate of sodium in two pints of tho distilled water; thoroughly triturate the chlorinated lime with six pints of the water, and filter; well mix the solutions; again filter. Keep the solution in a stoppered bottle in a cool and dark place. Characters and Tests.--A colourless alkaline liquid, with. astringent taste and feeble odour of chlorine. It decolorises sulphate of indigo. It is decomposed by hydrochloric acid, evolving chlorine and little or no carbonic acid gas. Specifio gravity T054. Seventy grains by weight, added to a solution of twenty grains of iodide of potassium in four fluid ounces of water and acidulated with two fluid drachms of hydrochloric acid, requires, for the discharge of the brown colour which the mixture assumes, at least COO grain-measures of the volumetric solution of hyposulphite of sodium, corresponding to about 2 per cent, of available chlorine. The solution yields only a slight precipitate with oxalate of ammonium. Dose.--10 to 20 minims. Prepara/.ion.--Cataplasma Sod...