Elementary Organic Analysis the Determination of Carbon And Hydrogen
The book Elementary Organic Analysis the Determination of Carbon And Hydrogen was written by author Benedict Francis Gano Here you can read free online of Elementary Organic Analysis the Determination of Carbon And Hydrogen book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elementary Organic Analysis the Determination of Carbon And Hydrogen a good or bad book?
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With Jena glass tubing the heat may be safely car- ried to a strong cherry-red without danger of having the tube blow out or become very much distorted. By properly supporting the absorbing system and the glass stop-cock in the entrance end of the tube so as to bring no great leverage on the tube no appreciable bending will occur. With Bohemian glass the heat must be much more carefully regulated and not carried beyond a low red heat. In either case unnecessary heating is to be avoided as waste...ful of gas and deleterious to the tube. A low red heat will serve to burn most all substances. A new tube should be heated for at least half an hour with a continual current of oxygen passing through it. At the end of that time a short straight calcium chloride tube filled with the granular chloride, which, however, needs no preliminary treatment with carbon dioxide, is inserted in the cork in the exit end of the tube. The small cork in the open end of the 48 ELEMENTARY ORGANIC ANALYSIS calcium chloride tube is fitted with a small glass tube which is purposely drawn down to a point, thereby allowing expansion and contraction of the gas inside the tube while permitting the minimum diffusion of air through the tip when the combustion tube is cold.
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