汞,一般叫做水银,具有特殊的性质,凝点低,-38.87℃,在常温下是银白色液体。它特别容易挥发,在零度时即可大量蒸发,温度越高蒸发越快。落在地面或桌面上易形成小滴,钻进地面、桌面、墙壁的缝隙,造成表面积扩大,更容易蒸发。汞蒸气较空气重6倍,多沉积于厂房的下部。这种种特性使 Mercury, commonly known as mercury, has special properties, low freezing point, -38.87 ℃, silver-white liquid at room temperature. It is particularly volatile and evaporates in large quantities at zero temperatures. The higher the temperature, the faster the evaporation. Fall on the ground or desktop easy to form droplets, drilling into the ground, desktop, wall gap, resulting in surface area expansion, more easily evaporated. Mercury vapor 6 times heavier than air, more deposition in the lower part of the plant. This kind of characteristic makes