Two oxides of iridium are known, namely the sesquioxide, Ir203, and the dioxide, Ir02, corresponding to which there are two series of salts, the sesqui-salts and the iridic salts; a third series of salts is also known (the iridious salts) derived from an oxide IrO. [Please select]
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That is the wonderful part of working in oxides and metallic colors. [Please select]
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Auer von Welsbach found that the substances most suitable for incandescent mantles were the oxides of certain rare metals, _thorium_, and _cerium_. [Please select]
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It is next held over a Bunsen gas flame and the cotton is burned away, while the nitrates are converted into oxides. [Please select]
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The mantle oxides convert the heat energy of the flame into light energy. [Please select]
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388, and should be as free as possible from the lower oxides of nitrogen. [Please select]
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This excess of oxygen effectually prevents the formation of carbon monoxide (CO) and the oxides of nitrogen. [Please select]
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