Carbide lamps are powered by the reaction of calcium carbide (CaC 2) with water (H 2 O). This reaction produces acetylene gas (C 2 H 2) which burns a clean, white flame. Acetylene gas was originally ...

But all of a sudden, their lamps extinguished in rapid succession ... water drips at a controlled rate from an upper chamber onto a lower reservoir of lumpy calcium carbide. The water reacts with the ...

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