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" Two precipitations by ammonia at boiling heat are usually quite sufficient to separate iron, aluminum, phosphorus, vanadium, chromium, titanium, and zirconium, if all these are present, from nickel, manganese, the alkaline-earth metals, and magnesium,... "
The Areas of the United States, the States, and the Territories - Page 82
by Henry Gannett - 1906 - 9 pages
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The Chemical News and Journal of Industrial Science; with which ..., Volume 83

Sir William Crookes - Chemistry - 1901
...titanium, and zirconium, if all these are present, from nickel, manganese, the alkaline-earth metale, and magnesium, provided ammoniacal salts are present...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. Precipitation by the...
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The Chemical News and Journal of Industrial Science; with which ..., Volume 78

Sir William Crookes - Chemistry - 1898
...chromium, titanium, and zirconium, if all these are present, from nickel, manganese, the alkaline earths, and magnesium, provided ammoniacal salts are present...chloride is better obtained by the use of purified •mmonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure....
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Bulletin of the United States Geological Survey, Issues 142-148

Geology - 1896
...chromium, titanium, and zirconium, if all these are present, from nickel, manganese, the alkaline earths, and magnesium, provided ammoniacal salts are present...alumina, especially as chemists were formerly often satisfled with a single precipitation. The necessary ammonium chloride is better obtained by the use...
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Bulletin - United States Geological Survey, Issues 142-149

Geological Survey (U.S.) - Geology - 1896
...these are present, from nickel, manganese, the alkaline earths, and magnesium, provided ammouiacal salts are present in sufficient quantity. This last...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. Manganese not always...
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Analyses of Rocks, with a Chapter on Analytical Methods ..., Volume 8, Issue 148

Frank Wigglesworth Clarke, William Francis Hillebrand - Rocks - 1897 - 306 pages
...chromium, titanium, and zirconium, if all these are present, from nickel, manganese, the alkaline earths, and magnesium, provided ammoniacal salts are present...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. Manganese not always...
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Survey of the Northwestern Boundary of the United ..., Volume 8, Issue 174

Marcus Baker - Northwest boundary of the United States - 1900 - 78 pages
...moreover, immoderately extend the time required for each analysis. PRECIPITATION OF ALUMINUM, IRON, ETC. Precipitation by ammonia. - Two precipitations by...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. Precipitation by the...
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Bulletin, Issues 303-308

Geology - 1907
...time required for each analysis. b. PRECIPITATION OF ALUMINUM, IRON, ETC., WITHOl T PRECll'ITATlNO MANGANESE. a. Precipitation by ammonia. — Two precipitations...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. The chemist should...
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The analysis of silicate ad carbonate rocks

William Francis Hillebrand - Rocks - 1907 - 200 pages
...moreover, immoderately extend the time required for each analysis. b. PRECIPITATION OF ALUMINUM, IRON, ETC., WITHOUT PRECIPITATING MANGANESE. a. Precipitation...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. The chemist should...
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Bulletin - United States Geological Survey, Issue 305; Issue 422

Geological Survey (U.S.) - Geology - 1910
...analysis. b. PRECIPITATION OK ALUMINUM, IRON, ETC., WITHOUT PRECIPITATING MANGANESE. a. Precijntation by ammonia. — Two precipitations by ammonia at boiling...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. The chemist should...
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Bulletin - United States Geological Survey, Issue 305; Issue 422

Geological Survey (U.S.) - Geology - 1910
...precipitations by ammonia at boiling heat are usually quite sufficient to separate iron, aluminum,0 phosphorus, vanadium, chromium, titanium, and zirconium,...obtained by the use of purified ammonia water and hydrochloric acid than by the addition of the solid salt, which is seldom pure. The chemist should...
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