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ABC Dry Chemical Powder
ABC Dry Chemical powder, 
Mono ammonium phosphate, ABC Dry Chemical, ABE Powder, tri-class, or multi-purpose dry chemical is a dry chemical extinguishing agent used on class A, class B, and class C fires. It uses a specially fluidized and siliconized mono ammonium phosphate powder. ABC dry chemical is usually a mix of mono ammonium phosphate and ammonium sulfate, the former being the active one. 

The mix between the two agents is usually 40–60%, 60-40%, or 90-10% depending on local standards worldwide.