 | 1898 - 356 Seiten
...appreciable amount. The melt is leached with water, washed, and extracted by a few drops of dilute hydrochloric acid, from which solution the barium...is seldom retained by it in quantity sufficient to be concerned about. Should this be the case, however, which will occur when the SrO and BaO are together... | |
 | 1901 - 392 Seiten
...acid. The filtrate, added to the former one, now contains all the zirconium (see under " Zirconium " for its further treatment). The residue contains all...which solution the barium is thrown out by a large excels of sulphuric acid. A single solution of the barium sulphate in concentrated sulphuric acid and... | |
 | 1896 - 1020 Seiten
...for anorg. Cbemie, Vol. XII, p. 223, 189«. 4b* ANALYSES OF EOCK8 AND ANALYTICAL METHODS. [Bou.148. out by a large excess of sulphuric acid. A single...is seldom retained by it in quantity sufficient to be concerned about. Should this be the case, however, which will occur when the SrO and BaO are together... | |
 | Geological Survey (U.S.) - 1896 - 1090 Seiten
...appreciable- amount. The melt is leached with water, washed, and extracted by a few drops of dilute hydrochloric acid, from which solution the barium...is seldom retained by it in quantity sufficient to be concerned about. Should this be the case, however, which will occur when the SrO and BaO are together... | |
 | Frank Wigglesworth Clarke, William Francis Hillebrand - 1897 - 342 Seiten
...appreciable amount. The melt is leached with water, washed, and extracted by a few drops of dilute hydrochloric acid, from which solution the barium...calcium which might contaminate it if the rock was one ricli in calcium, and even strontium is seldom retained by it in quantity sufficient to be concerned... | |
 | 1907 - 874 Seiten
...p. 120.) The ignited residue last obtained is fused with sodium carbonate, leached with water, and the residue dissolved off the filter by a few drops...excess of sulphuric acid. A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove... | |
 | Henry Gannett - 1906 - 644 Seiten
...p. 120.) The ignited residue last obtained is fused with sodium carbonate, leached with water, and the residue dissolved off the filter by a few drops...excess of sulphuric acid. A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove... | |
 | William Francis Hillebrand - 1907 - 212 Seiten
...120.) • The ignited residue last obtained is fused with sodium carbonate, leached with water, and the residue dissolved off the filter by a few drops...excess of sulphuric acid. A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove... | |
 | Geological Survey (U.S.) - 1907 - 220 Seiten
...p. 120.) The ignited residue last obtained is fused with sodium carbonate, leached with water, and the residue dissolved off the filter by a few drops...excess of sulphuric acid. A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove... | |
 | Samuel Stinson Gannett, David Henry Baldwin - 1910 - 490 Seiten
...p. 143.) The ignited residue last obtained is fused with sodium carbonate, leached with water, and the residue dissolved off the filter by a few drops...excess of sulphuric acid. A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove... | |
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A single solution of the ignited barium sulphate in concentrated sulphuric acid and reprecipitation by water suffices to remove traces of calcium which might contaminate it if the rock was one rich in calcium, and even strontium is seldom retained by... 
