Calcium carbide slag can also be used to make bleach

The calcium carbide slag is washed with the same amount of water for more than two times to remove stones and other impurities, and formulated into an aqueous solution containing calcium hydroxide. After two chlorination, the bleaching solution can be obtained. The main reaction formula is: 2Ca(OH)2+2Cl2→Ca(OCl)2+CaCl2+2H2O using calcium carbide slag to prepare bleach can save lime, but the stability is poor, so it should be used in time.

The reaction of calcium carbide slag and waste sulfuric acid can produce gypsum. In addition, it can also be used to build roads and extract potassium with potassium rhyolite.

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