The Effect of Ignition On the Solubility of Soil Phosphate
The Effect of Ignition On the Solubility of Soil Phosphate
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The filtrate was warmed to a temperature of 65 to 70 C. And the phosphoric acid precipitated with ammonium molybdate. The precipitate and solution were allowed to stand at 65 to 70 C. For about four hours, then filtered and the precipitate washed with a solution of ammonium nitrate. After this it was dissolved out with ammonia, and precipitated with magnesia mixture, then al- lowed to stand over night, filtered the next morning and washed with distilled water containing a little ammonia. The pr...ecipitate and filter were then dried, ignited, weighed and the phosphoric acid determined (2) in the usual way. The percentages given represent averages of closely agreeing duplicates for each soil both ignited and unignited.
TABLE I. PERCENTAGES Soil No. 12345 Ignited ................. 0. 410 0. 150 0. 090 0. 167 0. 151 Not ignited ............ .. 0. 460 0. 250 0. 130 0. 191 O. L'K) The data given in Table I leave no room for doubt as to the effect of ignition on soil phosphates as ex- isting in various soils.
What to read after The Effect of Ignition On the Solubility of Soil Phosphate?
You can find similar books in the "Read Also" column, or choose other free books by C B Charles Bernard Lipman to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The filtrate was warmed to a temperature of 65 to 70 C. And the phosphoric acid precipitated with ammonium molybdate. The precipitate and solution were allowed to stand at 65 to 70 C. For about four hours, then filtered and the precipitate washed with a solution of ammonium nitrate. After this it was dissolved out with ammonia, and precipitated with magnesia mixture, then al- lowed to stand over night, filtered the next morning and washed with distilled water containing a little ammonia. The pr...ecipitate and filter were then dried, ignited, weighed and the phosphoric acid determined (2) in the usual way. The percentages given represent averages of closely agreeing duplicates for each soil both ignited and unignited.
TABLE I. PERCENTAGES Soil No. 12345 Ignited ................. 0. 410 0. 150 0. 090 0. 167 0. 151 Not ignited ............ .. 0. 460 0. 250 0. 130 0. 191 O. L'K) The data given in Table I leave no room for doubt as to the effect of ignition on soil phosphates as ex- isting in various soils.
What to read after The Effect of Ignition On the Solubility of Soil Phosphate?
You can find similar books in the "Read Also" column, or choose other free books by C B Charles Bernard Lipman to read onlineMoreLess
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