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2015-11-23T21:11:41+05:30

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A soda-acid extinguisher was patented in the U.S. in 1881 by Almon M. Granger. His extinguisher used the reaction between sodium bicarbonate solution and sulfuric acid to expel pressurized water onto a fire.
A fire extinguisher that discharges water under pressure. The pressure is produced by mixing soda and acid to generate carbon dioxide.
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