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2. ABC dry chemical - Wikipedia

   en.wikipedia.org/wiki/ABC_dry_chemical

   Dry chemical powder is used on all classes of fires. Dry chemical powder puts out the fire by coating the burning material with a thin layer of dust, thereby separating the fuel from the oxygen in the air. The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out the fire.

3. Purple-K - Wikipedia

   en.wikipedia.org/wiki/Purple-K

   Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers. [1] It is the second most effective dry chemical in fighting class B (flammable liquid) fires after Monnex (potassium allophanate), and can be used against some energized electrical equipment fires (USA class C fires). [2]

4. Fire extinguisher - Wikipedia

   en.wikipedia.org/wiki/Fire_extinguisher

   Also in 1887, carbonic acid gas was described as a fire extinguisher for engine chemical fires at sea and ashore. [15] In 1928, DuGas (later bought by ANSUL) came out with a cartridge-operated dry chemical extinguisher, which used sodium bicarbonate specially treated with chemicals to render it free-flowing and moisture-resistant.

5. Carbon tetrachloride - Wikipedia

   en.wikipedia.org/wiki/Carbon_tetrachloride

   However, as early as 1920, there were reports of fatalities caused by the chemical when used to fight a fire in a confined space. [22] In the first half of the 20th century, another common fire extinguisher was a single-use, sealed glass globe, a "fire grenade, " filled with carbon tetrachloride or salt water.

6. Bromotrifluoromethane - Wikipedia

   en.wikipedia.org/wiki/Bromotrifluoromethane

   Bromotrifluoromethane, commonly referred to by the code numbers Halon 1301, R13B1, Halon 13B1 or BTM, is an organic halide with the chemical formula C Br F 3. It is used for gaseous fire suppression as a far less toxic alternative to bromochloromethane .

7. Potassium bicarbonate - Wikipedia

   en.wikipedia.org/wiki/Potassium_bicarbonate

   Potassium bicarbonate is used as a fire suppression agent ("BC dry chemical") in some dry chemical fire extinguishers, as the principal component of the Purple-K dry chemical, and in some applications of condensed aerosol fire suppression. It is the only dry chemical fire suppression agent recognized by the U.S. National Fire Protection ...