Directions for Laboratory Work in Physiological Chemistry; for the Use of Students in the University And Bellevue Hospital Medical College
The book Directions for Laboratory Work in Physiological Chemistry; for the Use of Students in the University And Bellevue Hospital Medical College was written by author Holmes Condict Jackson Here you can read free online of Directions for Laboratory Work in Physiological Chemistry; for the Use of Students in the University And Bellevue Hospital Medical College book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Directions for Laboratory Work in Physiological Chemistry; for the Use of Students in the University And Bellevue Hospital Medical College a good or bad book?
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Oxalic Acid. . To 500 c.c. of urine add 5 c.c. of CaClj solution. Then make slightly alkaline with. NH^OH and finally acid with acetic acid. After standing 24 hours collect the precipitate (?) upon a small filter. Treat the precipitate with 10 c.c. of very dilute HCl. Some of the precipitate dissolves. What re- mains? Filter and to the filtrate made again first alkaline with NH^OH and then acid with acetic acid, add CaClj (few c.c.) and allow to stand. Examine the crystals under the microscope.... QUANTITATIVE DETERMINATIONS. Chlorides. The principle of the method is the following: To the urine is added an excess of AgNOj over and above what is necessary to precipitate all the chlorides present. The excess of Ag is then determined by means of a sulpho- cyanide solution, using iron alum as an indicator. Reagents necessary: 1. A AgNOj solution, each c.c. of which precipitates 0.01 grm. NaCl (29.075 grms. AgNOj in a liter). 2. A saturated solution of iron alum. 3. Chlorine-free HNO3 of a specific gravity 1:2.
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