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凡遇水或潮湿空气能分解、产生出可燃气体,并放出热量,而引起燃烧或爆炸的物品,称为遇水燃烧物品。一、遇水燃烧物品的分类遇水燃烧物品按其遇水或受潮后发生反应的剧烈程度和危险性大小,分为一、二级。 1.一级遇水燃烧物品。此类物品遇水后发生剧烈的化学反应,产生出氢气或其他易燃易爆气体,而且放出的热量大,容易引起自燃爆炸。主要有碱金属和部分碱土金属以及它们的氢化物,如锂、钠、钾、铯、氢化锂、氢化钠等,还有碳化和磷化金属,如碳化钙、磷化钙等。
Where the water or humid air can be decomposed to produce a combustible gas, and emit heat, and cause burning or exploding items, known as the water burning items. First, the classification of water burning items Water burning items according to their water or damp reaction occurs after the degree of severity and risk size, divided into one or two. 1. A water-burning items. Such items encounter violent chemical reaction after water, resulting in hydrogen or other flammable and explosive gases, but also release large amounts of heat, easily lead to spontaneous combustion and explosion. Mainly alkali metals and some alkaline earth metals and their hydrides, such as lithium, sodium, potassium, cesium, lithium hydride, sodium hydride and the like, as well as carbonized and phosphated metals such as calcium carbide, calcium phosphide and the like.