what is the chemical in abc fire extinguishers
ABC dry chemical Monoammonium 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 monoammonium phosphate powder. ABC dry chemical is usually a mix of monoammonium phosphate and ammonium sulfate, the former being the active one. The mix between the two agents is usually 40â€“60%, 60-40%, or 90-10% depending on local standards worldwide. The USGS uses a similar mixture, called Phos Chek G75F.[1]
Carr Fire The Carr Fire is a wildfire burning in Shasta and Trinity Counties in California, United States. As of August 12, 2018, the fire had burned 202,976 acres (821 km2; 317 sq mi) and is 61% contained. It is the sixth-most destructive fire in California history.[3] The fire was reported on the afternoon of July 23, 2018, at the intersection of Highway 299 and Carr Powerhouse Road in the Whiskeytown district of the Whiskeytown–Shasta–Trinity National Recreation Area. The fire was started when a flat tire on a vehicle caused the wheel's rim to scrape against the asphalt, thus creating sparks.[4]