 | American Society for Testing Materials - 1920 - 868 Seiten
...solution with water to about 100 cc., add 1 cc. of a saturated solution of Na (NH4) HPO4, and NH4OH drop by drop with constant stirring, until the precipitate is again formed as above described and the ammonia is in moderate excess. Then allow it to stand in a cool atmosphere... | |
 | 1902 - 594 Seiten
...the solution is made up to about 100 cc., 2 cc. of a saturated solution of sodium ammonium phosphate added, and ammonia, drop by drop, with constant stirring...until the precipitate is again formed as described. It is then allowed to stand for about two hours, when it is filtered on paper ,or a Gooch crucible,... | |
 | Charles Carroll Brown - 1902 - 764 Seiten
...hot dilute liri,the solution made up to about 100 cc, 2 cc of a saturated solution of Na(NH4) HPO4 added, and ammonia drop by drop, with constant stirring...until the precipitate is again formed as described. It is then allowed to stand for about two hours, when it is filtered on paper or a Gooch crucible,... | |
 | 1927 - 524 Seiten
...the solution to about 100 ml, add 1 ml of a saturated solution of sodium-ammoniumhydrogen phosphate and ammonia, drop by drop, with constant stirring,...until the precipitate is again formed as described above and the ammonia is in moderate excess. Allow the precipitate to stand about two hours; filter... | |
 | Albert Bleininger, Geological Survey of Ohio - 1904 - 418 Seiten
...hydrochloric acid, the solution made up to about 100 cc., 2 cc. of a saturated microcosmic salt solution added and ammonia, drop by drop, with constant stirring...until the precipitate is again formed as described. Allow to stand for about two hours, when it is filtered on paper or in a Gooch crucible, cooled and... | |
 | Ohio. Division of Geological Survey - 1904 - 416 Seiten
...hydrochloric acid, the solution made up to about 10o cc., 2 cc. of a saturated microcosmic salt solution added and ammonia, drop by drop, with constant stirring...until the precipitate is again formed as described. Allow to stand for about two hours, when it is filtered on paper or in a Gooch crucible, cooled and... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - 1905 - 642 Seiten
...several hours in a cool atmosphere and filtered. The precipitate is redissolved in hot dilute HCl, the solution made up to about 100 cc, 1 cc of a saturated...is then allowed to stand for about 2 hours when it is filtered on a paper or a Gooch crucible, ignited, coo'ed and weighed as Mg2P2O7. KjO and Na^O: For... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - 1905 - 664 Seiten
...filtered. The precipitate is redissolved in hot dilute HC1, the solution made up to about 100 cc, i cc of a saturated solution of Na(NH4)HPO4 added, and...is then allowed to stand for about 2 hours when it is filtered on a paper or a Gooch crucible, ignited, coo'pd and weighed as Mg2P2O7. K2O and Na2O: For... | |
 | W. Purves Taylor - 1905 - 348 Seiten
...several hours in a cool atmosphere and filtered. The precipitate is redissolved in hot dilute HC1, the solution made up to about 100 cc, 1 cc of a saturated...as described and the ammonia is in moderate excess. lt is then allowed to stand for about 2 hours, when it is filtered on a paper or a Gooch crucible,... | |
 | Edwin Clarence Eckel - 1905 - 802 Seiten
...hot dilute HC1, the solution made up to about 100 ccj 1 cc of a saturated solution of Na(NH4)HPC>4 added, and ammonia drop by drop, with constant stirring...is then allowed to stand for about 2 hours when it is filtered on a paper or a Gooch crucible, ignited, cooled, and weighed as Mg2P207. K20 and Na2O:... | |
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The precipitate shall be dissolved in a small quantity of hot hydrochloric acid, the solution diluted to about 100 cc, 1 cc of a saturated solution of sodium-ammonium-hydrogen phosphate added, and ammonia drop by drop, with constant stirring, until the... 
