Chlorine disinfectant has a certain volatility, the natural state will be volatile chlorine gas, the higher the ambient temperature the stronger the volatility. If the container containing chlorine disinfectant sealed tightly, disinfectant volatile gas in the container to gather, more and more, to a certain extent, the container will burst, resulting in a fire.

Chlorine is a non-metallic element, belongs to one of the halogen group, has a strong irritating odor, at room temperature and pressure for the yellowish-green gas, highly toxic, by Karl Wilhelm Scheele first discovered. Chlorine in all elements, has the highest electron affinity, and is Bowling electronegativity in the third highest negative electronegativity of the elements, after oxygen and fluorine, it is in the form of chemical compounds widely present in nature, the human body's physiological activities also have important significance.