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Books Bücher 1 - 7 von 7 in In many cases in order to obtain all the cnlorine it is sufficient to attack the...
" In many cases in order to obtain all the cnlorine it is sufficient to attack the powder by chlorine-free hydrofluoric and nitric acids in the cold, with occasional stirring, and after filtering through paper fitted into a rubber funnel or large platinum... "
Bulletin - United States Geological Survey - Seite 184
von Geological Survey (U.S.) - 1910
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The Chemical News and Journal of Industrial Science; with which is ..., Band 78

1898
...hydrofluoric acid and a little nitric acid, with occasional stirring, and, after filtering through a large platinum cone, to throw down the chlorine by...nitrate. The presence of nitric acid is necessary, since otherwise ferrous fluoride reduces silver nitrate with deposition of crystallised silver. When coagulated...
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The Chemical News and Journal of Industrial Science; with which is ..., Band 83

1901
...occasional stirring, and after filtering through paper fitted into a large platinum cone or rubber funnel, to throw down the chlorine by silver nitrate. The presence of nitric acid is necessary, since otherwise ferrous fluoride reduces silver nitrate with deposition of crystallised silver. When coagulated...
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Analyses of Rocks, with a Chapter on Analytical Methods ..., Band 8,Ausgabe 148

Frank Wigglesworth Clarke, William Francis Hillebrand - 1897 - 306 Seiten
...hydrofluoric acid and a little nitric acid, with occasional stirring, and after filtering through a large platinum cone, to throw down the chlorine by...nitrate. The presence of nitric acid is necessary, since otherwise ferrous fluoride reduces silver nitrate with deposition of crystallized silver. When coagulated...
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Survey of the Northwestern Boundary of the United States ..., Band 8,Ausgabe 174

Marcus Baker - 1900 - 78 Seiten
...occasional stirring, and after filtering through paper fitted into a large platinum cone or rubber funnel, to throw down the chlorine by silver nitrate. The presence of nitric acid is necessary, since otherwise ferrous fluoride reduces silver nitrate with deposition of crystallized silver. When coagulated...
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Bulletin, Ausgaben 303-308

1907
...HYDROFLUORIC ACIDS. In many cases in order to obtain all the cnlorine it is sufficient to attack the powder by chlorine-free hydrofluoric and nitric acids in...nitric acid is necessary, since in its absence ferrous fluoride reduces silver nitrate with deposition of crystallized silver. It may be advisable to redissolve...
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The Areas of the United States, the States, and the Territories

Henry Gannett - 1906 - 9 Seiten
...HYDROFLUORIC ACIDS. In many cases in order to obtain all the cnlorine it is sufficient to attack the powder by chlorine-free hydrofluoric and nitric acids in...nitric acid is necessary, since in its absence ferrous fluoride reduces silver nitrate with deposition of crystallized silver. It may be advisable to redissolve...
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The analysis of silicate ad carbonate rocks

William Francis Hillebrand - 1907 - 200 Seiten
...HYDROFLUORIC ACIDS. In many cases in order to obtain all the chlorine it is sufficient to attack the powder by chlorine-free hydrofluoric and nitric acids in...or large platinum cone to throw down the chlorine bv silver nitrate. The presence of nitric acid is necessary, since in its absence ferrous fluoride...
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