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    luisjayanata's Avatar
    luisjayanata Posts: 1, Reputation: 1
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    #1

    Jan 22, 2017, 05:29 PM
    How does a dry powder fire extinguisher KHCO3 work to extinguish a fire
    Hi there,
    I would like to ask a question, how does a dry powder fire extinguisher (KHCO3) work to extinguish a fire?
    Thank you
    P.S. I found out that the dry chemical part is made of KHO and the gas propelling the powder is CO2 thus KHCO3
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Jan 23, 2017, 07:33 AM
    Where did you get that info. I believe it is wrong. ABC extinguishers are almost always Ammonium Phosphate powders pressurized with Nitrogen. They form a blanket and exclude O2.
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