| 摘要 |
A preparing method of a forest fire extinguishant is provided to obtain eco-friendly forest fire extinguishant by selecting various additives and biodegradable surfactants and performing the mixing test thereof. A preparing method of a forest fire extinguishant includes the steps of; heating purified water, adding surfactant to the purified water and stirring the mixture thereof; adding sodium phosphate to the above aqueous solution containing the surfactant, stirring and mixing the mixture thereof, stopping the heating and then stopping the stirring. In the first step, the purified water is heated up to the temperature of 45 to 55deg.C. The surfactant in an amount of 3.5 to 4.5 times of the amount of purified water is added to the purified water, and is stirred for 25 to 35 minutes at 100 to 200 rpm. |
