| 21. | Said composition is relatively low in magnesium oxide but high in titanium dioxide, calcium oxide, and niobium.
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| 22. | The most common forms are CaCO 3 ( calcium carbonate ) and CaO ( calcium oxide ).
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| 23. | On heating above 1350�C, it begins to decompose to tricalcium aluminate, calcium oxide, sulfur dioxide and oxygen.
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| 24. | Peraluminous granites are those that contain more aluminum oxide than sodium oxide, potassium oxide, and calcium oxide combined.
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| 25. | Additional chemicals vary depending on the mineral source and may include calcium oxide, magnesium oxide and magnesium carbonate.
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| 26. | The last mass loss is due to the decomposition of calcium carbonate to calcium oxide and carbon dioxide.
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| 27. | Calcium oxide which survives processing without reacting in building products such as cement is called "'free lime " '.
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| 28. | In the heat of the furnace the limestone flux decomposes to calcium oxide ( also known as quicklime ):
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| 29. | The new formulation is known to be of plant origin, using calcium oxide in order to gauge color depth.
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| 30. | In 1900 the engineer Luis Espinosa built a first calcium oxide factory in Apaxco, was inaugurated by president Porfirio D�az.
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