 Gradually raise the temperature and when danger (if any) from frothing has ceased, distil until 95 cc. of distillate is obtained, and titrate as usual. In cases where a tendency to froth is noticed, lengthen the digestion period and no trouble will be...  Bulletin - Bureau of Chemistry - Pàgina 35per United States. Bureau of Chemistry - 1912Visualització completa - Sobre aquest llibre
 | Vermont Agricultural Experiment Station - 1912 - 792 pàgines
...Gradually raise the temperature and when danger (if any) from frothing has ceased, distil until H5 cc. of distillate is obtained, and titrate as usual....distillation. The nitrogen thus obtained is the active water insoluble organic nitrogen. (2) With Raw Materials: — Transfer an amount of material equivalent... | |
 | Vermont Agricultural Experiment Station - 1914 - 370 pàgines
...minutes. Gradually raise the temperature and when danger (if any) from frothing has ceased, distil until 95 cc. of distillate is obtained, and titrate...distillation. The nitrogen thus obtained is the active water insoluble organic nitrogen. (2) With Raw Materials: — Transfer an amount of material equivalent... | |
 | Michigan State University. Agricultural Experiment Station - 1916 - 496 pàgines
...any) from frothing has ceased, distil until 95 cc of distillate is obtained, and titrate as visual. In cases where a tendency to froth is noticed, lengthen...distillation. The nitrogen thus obtained is the active water insoluble organic nitrogen. . ANALYTICAL DATA. The analytical results obtained are given in the... | |
 | Edward G Mahin - 1919 - 640 pàgines
...of frothing has passed, distill until 95 cc of the distillate is obtained and titrate as usual. When a tendency to froth is noticed lengthen the digestion...the material shows a tendency to adhere to the sides of the flask. The nitrogen thus obtained is the active water-insoluble organic nitrogen. Phosphorus.... | |
 | Association of Official Analytical Chemists - 1920 - 656 pàgines
...minutes. Gradually raise the temperature and when danger (if any) from frothing has ceased, distil until 95 cc. of distillate is obtained, and titrate...distillation). The nitrogen thus obtained is the active water insoluble organic nitrogen. METHOD II. With Raw Materials*. Transfer a sample equivalent to 50... | |
 | Association of Official Analytical Chemists - 1920 - 438 pàgines
...frothing has passed, distil until 95 cc. of the distillate are obtained, and titrate as usual. When a tendency to froth is noticed, lengthen the digestion...material shows a tendency to adhere to the sides. The nitrogen thus obtained is the active water-insoluble organic nitrogen. POTASH. L indo-Gladding... | |
 | Roger Castle Griffin - 1921 - 696 pàgines
...frothing has passed, distill until 95 cc. of the distillate are obtained, and titrate as usual. When a tendency to froth is noticed, lengthen the digestion...material shows a tendency to adhere to the sides. The N thus obtained is the active water-insoluble organic N. CALCULATIONS. — The following factors... | |
 | Michigan State University. Agricultural Experiment Station - 1916 - 956 pàgines
...minutes. Gradually raise the temperature and when danger (if any) from frothing has ceased, distil until 95 cc of distillate is obtained, and titrate...distillation. The nitrogen thus obtained is the active water insoluble organic nitrogen. ANALYTICAL DATA. The analytical results obtained are given in the... | |
 | Edward G. Mahin - 1924 - 634 pàgines
...is obtained, then titrate as usual. If a tendency to froth is noticed lengthen the digestion period. During the digestion gently rotate the flask occasionally,...the material shows a tendency to adhere to the sides of the flask. The nitrogen thus obtained is the active water^insoluble organic nitrogen. Phosphorus.... | |
 | Roger Castle Griffin - 1927 - 970 pàgines
...frothing has passed, distill until 95 cc. of the distillate are obtained, and titrate as usual. When a tendency to froth is noticed, lengthen the digestion...material shows a tendency to adhere to the sides. The N thus obtained is the active waterinsoluble organic N. 1 cc. 0.1 N acid = 0.001401 gram N. = 0.001703... | |
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