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1
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Used in electrical insulators
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4
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Used in telecommunication
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5
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Used in combustion tubes
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6
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Glass containers can hold this mixture, that has the capacity to dissolve gold
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7
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Used to make superior laboratory apparatus
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8
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Gradual cooling glass to room temperature
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9
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Used in aeroplane and automobile industry
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2
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Used in electric bulbs, window panes
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3
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Ferric compound used to give this colour to glass
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10
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Ferrous and chromium compounds give this colour to glass
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