dry-chemical fire extinguisher

dry-chemical fire extinguisher

[¦drī ‚kem·i·kəl ′fīr ik‚stiŋ·gwə·shər]
(chemical engineering)
A dry powder, consisting principally of sodium bicarbonate, which is used for extinguishing small fires, especially electrical fires.
References in periodicals archive ?
If participants are required to know the procedure for extinguishing a fire using a dry-chemical fire extinguisher, they should be able to describe the PASS steps.
Analysis showed it to be from a dry-chemical fire extinguisher and not dangerous, police said.
Since most households contain potentially flammable sources from all three classes, an ABC or multipurpose dry-chemical fire extinguisher is most effective.