| 摘要 |
PROBLEM TO BE SOLVED: To improve fire extinguishing performance to a general fire, a fire caused by tempura oil and a fire caused by an oil heater by composing a fire extinguishing chemical mainly of calcium carbonate and including one or two kinds of potassium monohydrogenphosphate and potassium dihydrogenphosphate, and to reduce bad influence on environment by lowering pH. SOLUTION: One or more kinds selected from potassium monohydrogenphosphate, potassium dihydrogenphosphate, hydrocarbon surface active agent, and fluorocarbon surface active agent are mixed with potassium carbonate which is the main component of general water and alkali salt fire extinguishing chemical to obtain a water and alkali salt fire extinguishing chemical. The potassium monohydrogenphosphate and potassium dihydrogen phosphate have the flame preventive effect to a general fire, the promotion of a reaction film, improvement in fire extinguishing to a fire caused by tempura oil and pH lowering action, Amphoteric hydrocarbon surface active agent has the effects of stabilization and preventing the occurrence of precipitate of a solution and improving wettability to improve fire extinguishing performance to a general fire. A fluorocarbon surface active agnet has an effect of improving the fire extinguishing performance by forming a foam film in extinguishing a fire caused by tempura oil.
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