G, ammonia, sp. gr. 0.90; cover, and allow to stand over night. On the next morning filter, and wash the precipitate with 2.5 percent ammonia water. Dissolve the precipitate on the filter paper and that remaining in the beaker in which the precipitation... Technical Series Bulletin - Síđa 27eftir Ohio Agricultural Experiment Station - 1914Heildartexta - Um bókina
 | Ohio Agricultural Experiment Station - 1908 - 1184 síđur
...mixture, stirring freely; allow to stand 15 minutes, and add 10 cc of ammonia, specific gravity .90. Cover, and allow to stand over night. On the next...water. Dissolve the precipitate on the filter paper with dilute nitric acid into the same beaker in which the first precipitation was made, and wash the... | |
 | Ernest Browning Forbes - 1915 - 48 síđur
...on p. 24. Add 10 cc magnesia mixture, stirring freely; allow to stand 15 minutes, and add 25 cc of ammonia, sp. gr. 0.90; cover and allow to stand over...water. Dissolve the precipitate on the filter paper with dilute nitric acid into the same beaker in which the first precipitation was made, and wash the... | |
 | Association of Official Agricultural Chemists (U.S.) - 1920 - 656 síđur
...and allow to stand 3 days. On the morning of the third day filter and wash the precipitate with 2.5% ammonia water. Dissolve the precipitate on the filter...ammonia; make slightly acid with nitric acid. Add 5 grains of ammonium nitrate and precipitate in the usual way with molybdat* solution. Continue in the... | |
 | 1915 - 662 síđur
...to stand 3 days. On the morning of the third day filter, and wash the precipitate with 2.5 per cent ammonia water. Dissolve the precipitate on the filter...water, receiving the solution in 400 cc. beakers. Xcutralize the nitric acid with ammonia; make slightly acid with nitric acid. Add 5 grains of ammonium... | |
| |