超氧化钾是一种黄色固体,其比重为2.14,熔点儿380℃。加热时能分解生成过氧化钾(K_2O_2)式氧化钾(KO_2):超氧化钾的生成温度为425℃左右。因此,就超氧化钾本身而言,它是一种比较稳定而无爆炸特性的化学物质。然而它却很容易与水或潮湿的 CO_2发生反应而生热并在与任何一种燃料接触时生成高度可燃的混合物。这些特性连同自救器的外形在很大程度上使自救器在井下使用具有危险性。比如,不小心使自救器埋入煤堆或受潮时,它有可能引燃或自燃。如果由于自救器发生机械故障造成超氧化钾泄出,则还可能引起其它方面的危险事故。为了估计这些危害的程度,对超氧化钾、 Superoxide is a yellow solid with a specific gravity of 2.14 and a melting point of 380 ° C. Thermal decomposition of potassium oxide (K_2O_2) -type potassium oxide (KO_2): the formation of potassium peroxide temperature is about 425 ℃. Therefore, in terms of superoxide itself, it is a relatively stable chemical without explosive properties. However, it readily reacts with water or humidified CO2 and generates heat and generates a highly flammable mixture upon contact with any of the fuels. These characteristics, together with the shape of the self-rescuer, make the use of the self-rescuer a downhole hazard to a great extent. For example, it may ignite or self-ignite when it is accidentally buried in a coal pile or gets wet. If the self-rescuer mechanical failure caused by the emergence of superoxide, it may also cause other dangerous accidents. In order to estimate the extent of these hazards, the effects of superoxide,