Fire-extinguishing and flame-propagating-suppressing agent composition, and fire-extinguishing and flame-propagating-suppressing agent using same

Provided are: a fire-extinguishing and flame-propagation-suppressing agent composition which causes little burden on the environment and is suitable for extinguishing fire and suppressing flame propagation (preventing reburning) in large-scale fires such as forest, mountain and wild fires; and a fire-extinguishing and flame-propagation-suppressing agent which uses the composition. The fire-extinguishing and flame-propagating-suppressing agent composition and the fire-extinguishing and flame-propagating-suppressing agent using the same according to the present invention are characterized by containing a phosphorus salt, a potassium salt, and a dispersion medium. 本发明提供一种灭火和抑制火焰蔓延剂组合物以及使用该组合物的灭火和抑制火焰蔓延剂，其对环境的负荷少，并且适合森林山野火灾等大规模火灾的灭火和抑制火焰蔓延(防止再燃)。本发明的灭火和抑制火焰蔓延剂组合物以及使用其的灭火和抑制火焰蔓延剂的特征在于，含有磷盐、钾盐和分散介质。