 | Charles Carroll Brown - Cement - 1902 - 764 pages
...form. It is allowed to stand for twenty minutes or until the precipitate has settled and then filtered. The precipitate and filter are placed wet in a platinum...Bunsen burner. It is then ignited, redissolved in IIC1 and the solution made up to about 100 cc with water. Ammonia is added in slight excess and the... | |
 | Geology - 1907 - 874 pages
...saturated solution of ammonium oxalate, and the boiling is continued until the precipitated calcium oxalate assumes a well-defined granular form. It is then allowed to stand for an hour, filtered, and washed a few times with hot water. The precipitate and filter are ignited in... | |
 | Ohio. Division of Geological Survey - Geology - 1904 - 416 pages
...the boiling continued until the calcium oxalate appears as a well defined granular precipitate. It is allowed to stand for 20 minutes or until the precipitate has settled and then filtered. The precipitate and filter are placed, wet, in a platinum crucible and the paper burnt off over a small... | |
 | Geology - 1904 - 430 pages
...the boiling continued until the calcium oxalate appears as a well defined granular precipitate. It is allowed to stand for 20 minutes or until the precipitate has settled and then filtered. The precipitate and filter are placed, wet, in a platinum crucible and the paper burnt off over a small... | |
 | Albert Bleininger - Cement - 1904 - 414 pages
...precipitate. It is allowed to stand for 20 minutes or until the precipitate has settled and then filtered. The precipitate and filter are placed, wet, in a platinum crucible and the paper burnt off over a small Bunsen flame. It is then ignited, redissolved in hydrochloric acid and the solution... | |
 | Edwin Clarence Eckel - Cement - 1905 - 796 pages
...added, and the boiling continued until .the precipitated CaC2<)4 assumes a well-defined granular /orm. It is 'then allowed to stand for 20 minutes, or until...crucible, and the paper burned off over a small flame of a liunscn burner. It is then ignited, redissolved in HC1, and the solution made up to 100 cc with water.... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - Concrete - 1905 - 642 pages
...Fe20,. |In this way only is the influence of titanium to be avoided and a correct result obtained for or until the precipitate has settled, and then filtered...Bunsen burner. It is then ignited, redissolved in HCl, and the solution made up to 100 cc with water. Ammonia is added in slight excess, and the liquid... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - Concrete - 1905 - 664 pages
...saturated solution of ammonium oxalate is added, and the boiling continued until the precipitated CaC2O4 assumes a well-defined granular form. It is then allowed to stand for 20 minutes, *For ordinary control work in the plant laboratory this correction may, perhaps, be neglected, the... | |
 | Richard Kidder Meade - Portland cement - 1906 - 422 pages
...saturated solution of ammonium oxalate are added, and the boiling continued until the precipitated CaC2O4 assumes a well-defined granular form. It is then allowed...Bunsen burner. It is then ignited, redissolved in HCl, and the solution made up to 100 cc. with water. Ammonia is added in slight excess, and the liquid... | |
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The precipitate and filter are placed wet in a platinum crucible, and the paper burned off over a small flame of a Bunsen burner. 
