The book Reagents And Reactions was written by author Edgardo Tognoli Here you can read free online of Reagents And Reactions book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Reagents And Reactions a good or bad book?
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C. ; methyl green, i grm. (2) Phenol, 0-25 grm. ; pyronine, i grm. ; and water, 100 c. C. PAUL (biliary pigments in urine). Normal urine, when treated with methyl violet, does not affect the colour of the dyestuff, whereas, in the presence of biliary pigments, the violet colora- tion changes to blood-red. PAVY (dextrose in urine). 120 c. C. Of Fehling's solution are diluted with water to 1, 000 c. C. , and 300 c. C. Of ammonia solution (sp. Gr. 0-88) and REAGENTS AND REACTIONS. 400 c. C. Of sod...ium hydroxide solution (sp. Gr. 1-14) are added. On boiling the reagent with a solution containing dextrose, it is decolorised. PAYEN (mineral acids in vinegar}. 100 c. C. Of the vinegar are boiled for thirty minutes with 0-05 grm. Of starch. After cooling, the liquid is treated with a potassium iodide solution of iodine. In the presence of mineral acids, no blue coloration appears. PELIGOT (textile fibres). See SCHWEITZER. PELLAGRI (morphine). On evaporating a solution of morphine in strong hydrochloric acid with 2 drops of sulphuric acid, a purple-red coloration is produced.
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