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Books Bücher 1 - 6 von 6 in All of the iron ores will in burning change to the form of oxide, provided the clay...
" All of the iron ores will in burning change to the form of oxide, provided the clay is not vitrified, and so affect the color of the burned material ; if vitrification occurs, the iron oxide enters into the formation of silicates of complex composition.... "
Final Report - Seite 57
von New Jersey Geological Survey - 1904
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Final Report of the State Geologist, Band 6

New Jersey Geological Survey - 1904
...noncrystalline form, and forms a coating on the surface of the grains. Coloring action of iron oxide on burned clay. — All of the iron ores will in burning...from iron oxide burns white. If a small quantity, say 1 per cent., is present, a slightly yellowish tinge is imparted to the burned material, but an increase...
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Bulletin, Ausgaben 1-3

Virginia Division of Mineral Resources - 1905
...of the iron ores will, in burning, change to the form of oxide, provided the clay is not completely vitrified, and so affect the color of the burned material...however, depend on : 1st, the amount of iron in the clay ; 3d, the temperature of burning ; 3d. condition of the iron oxide ; and 4th, the condition of the...
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The Clay Deposits of the Virginia Coastal Plain

Heinrich Ries - 1906 - 184 Seiten
...of the iron ores will, in burning, change to the form of oxide, provided the clay is not completely vitrified, and so affect the color of the burned material;...from iron oxide burns white. If a small quantity, say 1 per cent., is present, a slightly yellowish tinge is imparted to the burned material, but an increase...
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CLAYS, THEIR OCCURRENCE, PROPERTIES AND USES WITH ESPECIAL REFERENCE TO ...

Heinrich Reis - 1908 - 554 Seiten
...provided a sufficient supply of oxygen is able to enter the pores of the clay before it is vitrified; if vitrification occurs the iron oxide enters into...shade produced by the iron will, however, depend on first, the amount of iron in the clay; second, the temperature of burning; third, condition of the...
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The Clays of the State of Washington, Their Geology, Mineralogy, and ...

Solon Shedd - 1910 - 341 Seiten
...be formed. According to Ries,j the color and depth of shade produced by iron in burning clays will depend on, "1st, the amount of iron in the clay; 2d,...condition of the iron oxide, and 4th, the condition of kiln atmosphere." Clay perfectly free from iron will burn white. When a very small amount of iron is...
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The Journal of Physical Chemistry

1916
...provided a sufficient supply of oxygen is able to enter the pores of the clay before it is vitrified; if vitrification occurs, the iron oxide enters into...shade produced by the iron will, however, depend on: first, the amount of iron in the clay; second, the temperature of burning; third, condition of the...
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