On poisons in relation to medical jurisprudence and medicine . this experiment. 4. It does not dissolvegold-leaf even on boiling; but on adding to the boiling liquid a fewdrops of hydrochloric acid, the gold is immediately dissolved. In the diluted state. This acid is not precipitated like the sulphuricby any common reagent, since all its alkaline combinations are solublein water—1. The diluted liquid has a highly acid reaction, and onboiling it with some copper turnings, red fumes of nitrous acid vaporare given off, unless the proportion of water is too great. At the sametime, the liquid acqu
On poisons in relation to medical jurisprudence and medicine . this experiment. 4. It does not dissolvegold-leaf even on boiling; but on adding to the boiling liquid a fewdrops of hydrochloric acid, the gold is immediately dissolved. In the diluted state. This acid is not precipitated like the sulphuricby any common reagent, since all its alkaline combinations are solublein water—1. The diluted liquid has a highly acid reaction, and onboiling it with some copper turnings, red fumes of nitrous acid vaporare given off, unless the proportion of water is too great. At the sametime, the liquid acquires a blue color. 2. A streak made on whitepaper with the diluted acid does not carbonize it when heated; but ascarcely visible yellow stain is left. Diluted sulphuric and hydro-chloric acids carbonize paper under similar circumstances. 3. Theliquid is neither precipitated by a salt of baryta nor by nitrate of sil-ver. These two last experiments give merely negative results—theyserve to show that the sulphuric and hydrochloric acids are absent. Fig.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpoisons, bookyear1875
