Methods for the Analysis of Insecticides And Fungicides
Methods for the Analysis of Insecticides And Fungicides
J K John Kerfoot Haywood
The book Methods for the Analysis of Insecticides And Fungicides was written by author J K John Kerfoot Haywood Here you can read free online of Methods for the Analysis of Insecticides And Fungicides book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Methods for the Analysis of Insecticides And Fungicides a good or bad book?
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The distillation is continued till all the nicotin has passed over, the distillate usually varying from KM) to ~. indicator. ( >ne molecule of sulphuric acid is equivalent to two molecules of nicotin. NICOTIN, METHOD II I'KMVISIONAL). SOLUTIONS RKljriKKP. A weak sodium hydroxid solution containing -1 grams to the liter :tnd a standard fth-normal hydrochloric acid solution. METHOD. A solution of ('. P. Nicotin of approximately 1 per cent strength is first pro- pared and an aliquot portion caref...ully tit rated against fifth-normal hydrochloric acid, using methyl orange as indicator, so as to definitely establish the exact percentage f nicotin in solution. A separate portion of the same solution is then placed in a -Ill-cm tube and its rotation in terms of the sugar scale deter- mined, lly dividing the percentage of nicotin present by the reading on the -II.
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