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Air, an important industrial raw material, is first filtered to remove any solid matter. Then its constituent gases-nitrogen, oxygen, and other trace gases-can be separated by compressing the air, cooling it, and then allowing it to expand, which ...
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Contents
Processing Air (5:45) -- Uses of Nitrogen and Oxygen (4:17) -- Producing Sulfuric Acid (5:20) -- Uses of Sulfuric Acid (3:45)