United States or Colombia ? Vote for the TOP Country of the Week !


The conversion of the above to phenyl arsenious oxide. The conversion of the latter into diphenyl arsinic acid. The conversion of the latter into diphenyl-chlor-arsine. This is another example of a highly complicated product which might have presented great difficulties of production, but the problem of whose manufacture was solved, almost automatically, by the German organisation.

From the acids in insoluble and a few other compounds, chromic, arsenic, and arsenious acids, by fusion with carbonate of soda in presence of carbonic acid gas; borate of manganese is readily decomposed when the boracic acid is to be determined by boiling with solution of potassa, dissolving the residue in hydrochloric acid and precipitating the manganese as binoxide.

"I don't know, doctor, and I don't even know where she can have procured the arsenious acid." Justin, who was just bringing in a pile of plates, began to tremble. "What's the matter?" said the chemist. At this question the young man dropped the whole lot on the ground with a crash. "Imbecile!" cried Homais, "awkward lout! block-head! confounded ass!" But suddenly controlling himself

The cacodylates, although formerly employed in the treatment of phthisis, should be used with the utmost caution. The arsenites give the reactions of arsenious acid. Arsenic is eliminated not only by the kidneys and bowels, but by the skin, and in women by the menses. It may be detected in the sweat, the saliva, the bronchial secretion, and, during lactation, in the milk.

The substance called alkargen, discovered by Bunsen, which contains a very large quantity of arsenic, and approaches very closely in composition to the organic arsenious compounds found in the body, has not the slightest injurious action upon the organism.” Now when these substances are brought into contact with the tissues in any way, they do not combine with them; they do not arrest their progress to decomposition.

The young doctor went very much into details, even so far as giving the various chemical symbols of poison, dwelling long on arsenious acid, whose symbol, he told the reporter, was As2O5, while if one desired to test the organs for traces of strychnine, it would be necessary to use "sodium and potassium hydroxide, ammonia and alkaline carbonate, to precipitate the free base strychnine from aqueous solutions of its salts as a white, crystalline solid," while this imposing formula was given: "C21H22 + NaOH C21H22 + H20 + NaNO3."

It has been frequently stated that the peasants of Styria are in the habit of taking from two to five grains of arsenious acid daily for the purpose of improving the health, avoiding infection, and raising the whole tone of the body. It is a well-substantiated fact that the quantities taken habitually are quite sufficient to produce immediate death ordinarily.

I shall select, as a first example, an interesting speculation of one of the most eminent of theoretical chemists, Baron Liebig. The object in view is to ascertain the immediate cause of the death produced by metallic poisons. Arsenious acid, and the salts of lead, bismuth, copper, and mercury, if introduced into the animal organism, except in the smallest doses, destroy life.

From the corrected volume of the iodine solution used to oxidize the arsenious oxide, calculate its relation to the normal. From the ratio between the solutions, calculate the similar value for the thiosulphate solution.

I shall select, as a first example, an interesting speculation of one of the most eminent of theoretical chemists, Professor Liebig. The object in view, is to ascertain the immediate cause of the death produced by metallic poisons. Arsenious acid, and the salts of lead, bismuth, copper, and mercury, if introduced into the animal organism, except in the smallest doses, destroy life.