Purple K is commonly used in high-risk areas such as: oil refineries, airport ramps, service stations, military facilities, naval warships, power plants, and other places where flammable liquids are handled. It is the most effective dry chemical in fighting class B (flammable liquid) or Class C (electrical) fires. Purple-K powder has an acrid taste and odor, is free-flowing, floating on most liquids, non-abrasive, does not wet with water and is compatible with most foam concentrates. It has violet color, to distinguish it from other dry agents. Purple-K is normally non-toxic, but ingestion of large amount can cause alkalosis. In high temperatures it decomposes to carbon dioxide and potassium oxide, which is toxic and highly corrosive.
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