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Showing posts with the label types of dry chemical powder

Everything about Dry Chemical Powder

Introduction : Dry chemical is a powder mixture which is used as a fire extinguishing agent. It is intended for application by means of portable extinguishers, hand hose line systems, or fixed systems. The following types of dry chemical powder are generally used: " CLICK to view:- Seminar on Dry chemical powder " a) Borax and sodium bicarbonate based dry chemicals were the first such agents developed. Sodium bicarbonate became the standard because of its greater effectiveness as a fire extinguishing agent.  b) Now sodium bicarbonate base dry chemical was modified to render it compatible with protein based low expansion forms to permit a duel agent attack.  c) Multipurpose (mono-ammonium phosphate base) and "purple-K" (potassium bicarbonate base) dry chemicals then were developed for fire extinguishing use.  d) Shortly there after, "Super-K" (Potassium chloride base) was developed to equal "purple-K" in effectiveness.  Dry chemical is...