A Text book of Chemistry And Chemical Uranalysis for Nurses
The book A Text book of Chemistry And Chemical Uranalysis for Nurses was written by author Harold Lindsay Amoss Here you can read free online of A Text book of Chemistry And Chemical Uranalysis for Nurses book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Text book of Chemistry And Chemical Uranalysis for Nurses a good or bad book?
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= 32. ) Occurrence. Sulphur is found in a free state as brimstone in volcanic areas 1 and in combination in mineral deposits. Fool's gold which one sometimes sees in coal is a combination of sulphur and iron, Fe 2 S 3 (iron sulphide). Sulphides of copper, zinc, lead, etc. , also occur in large quantities in the earth's crust. The so-called sulphur springs contain hydrogen sul- phide, H 2 S, in solution. On exposure to oxygen and oxidizing agents hydrogen sulphide deposits sulphur: 2H 2 S + O 2 ...= 2H 2 O + 2S. Sulphur is purified by distillation. The chemically pure product is obtained by recrystallization from solution in carbon bisulphide. Uses. Sulphur itself is used in various skin diseases due to parasites and other causes. It is sometimes administered internally for its cathartic action, due, doubtless, to the sulphides formed in the intestinal tract, for sulphur itself is inert. Sulphur is used in gun powder, and in the manufacture of certain kinds of matches. 1 Sulphur deposits are found in Louisiana in sufficient quantities to warrant mining.
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