Arsenic preparation

Arsen-oxyd, n, arsenic oxide, specif, arsenic trioxide, arsemc(III) oxide. -pra parat, n, arsenical preparation, arsenical, -probe, /, arsenic test or sample, -rohr, n, -rShre, /. arsenic tube, -rotgultigerz, n. proustite. -rubin, m. realgar, -salz, n. arsenic salt, arsensauer, a. of or combined with arsenic acid, arsenate of,... 

Paracelsus abandoned all this witchcraft and superstition. He started the search for the potent drugs which the alchemist was to prepare or purify. Even the many herbs and extracts in common medical use were placed secondary to the value of these chemicals. There were many who gave ear to his instructions They went back to their laboratories, threw away the crucibles filled with the strange concoctions that would not change to gold, and sought medicines to relieve human suffering. Paracelsus himself showed the way. He experimented in his laboratory, and introduced into medicine salves made from the salts of mercury. He was the first to use tincture of opium, named by him laudanum, in the treatment of disease. The present pharmacopoeia includes much that Paracelsus employed —lead compounds, iron and zinc salts, arsenic preparations for skin diseases, milk of sulfur, blue vitriol, and other chemicals. 

Arsenic Prepare and test a 2-g sample as directed under Arsenic in the monograph for Ferric Phosphate. 

Silicon may be present in various forms in some preparations, e.g. as tri-silicate in antacids, polydimethyl-siloxane or silicone oil (see also section VII, ref. 77). The sample may be evaporated to dryness and the residue fused with sodium bicarbonate or another fusion agent, or taken up in hydrofluoric acid provided strong heating and loss of silicon is avoided. A nitrous oxide/acetylene flame must be used. Chromium may be found in disinfectants and antiseptics. Unless dilution of the sample is possible the use of the injection-cup technique (see section II.A) may be preferable as otherwise large amounts of corrosive salts such as sodium hypochlorite will be aspirated. If iron is also present it may be necessary to use a nitrous oxide/ acetylene flame. Arsenic in arsenamide and lead arsenate preparations can be determined by boiling the sample in 5% nitric acid and aspiration of the sample [111]. Better sensitivity would be obtained using hydride generation (see section II.A). 

XENECHDON — According to Paracelsus, is a Tablet of Arsenic, or Arsenic prepared as a Preservative against the Pestilence. Although this composition not only contains Arsenic, but also Toads, Ditany, and other Substances. 

Malaria. For years, arsenic preparations were the first line of defense against malaria, and later were used in obstinate cases to reinforce quinine therapy. 

Arsenic was associated with human reproduction in many guises. Some Indian women are said to take arsenical potions early in their pregnancy to increase their chances of having a son (72). Ingestion of arsenic preparations to increase the male sexual appetite and excite sexual pleasure or as an aphrodisiac was well documented among many Asian and European cultures (21,24). The most common use of arsenic was as an abortifacient, however. It has been shown, for instance, that about 30% of all abortions in Sweden between 1851 and 1880 were committed with arsenic (21). Numerous fatalities from attempted abortions with arsenic reported in the medical records of the nineteenth century (37,45) attest to the fact that the practice was eommon in many countries. 

Caldum and lithium carbonates in small quantities exert a favorable action. Carbonic add, iron, and metallic aluminium act as exdtants of the secretion, the effect of iron and aluminium being related to that of hydrogen. As other substances favoring the secretion, we may mention certain arsenical preparations, as well as medicinal preparations containing iodine. 

Reagents 1) Silver arsenate prepared by the action of sodium arsenate on silver nitrate. The precipitate may be isolated by centrifuging. The product is washed thoroughly and then dried at 110 C 2) 3% solution of phosphomolybdic acid in 1 1 hydrochloric acid... 

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