Chlorine dioxide is highly oxidizing and explosive when its volume concentration exceeds 10% in air, but its aqueous solution is very safe (the content in water exceeds 30%). It can react explosively with various chemicals and is very sensitive to heat, vibration, impact and friction. It's easy to decompose and explode.
Second, the role of chlorine dioxide:
1, sterilization mechanism
Chlorine dioxide has a strong ability to absorb and penetrate cell walls. It releases atomic oxygen to kill the enzymatic oxidation of sulfhydryl groups in cells.
Step 2 bleach
Chlorine dioxide bleaching decomposes pigments by releasing atomic oxygen and producing hypochlorite. Using it instead of chlorine and chlorate as bleaching agent can prevent and avoid fiber oxidation, reduce fiber strength and achieve more comprehensive results.
Step 3 deodorize
Deodorization of chlorine dioxide is due to dehydration reaction between chlorine dioxide and odorous substances (such as H2S, -SOH, -NH2, etc.). ) and the rapid oxidation of odorous substances into other substances. It can also prevent methionine from decomposing into ethylene, destroying the formed ethylene, thus delaying decay, and not reacting with fatty acids to kill microorganisms without destroying the food structure.
Extended data:
Chemical properties of chlorine dioxide;
Red-yellow gas with strong pungent smell: it liquefies into red-brown liquid at 1 1℃ and solidifies into orange-red crystal at -59℃, with special pungent smell similar to chlorine and nitric acid. The liquid is reddish brown and the solid is orange red. Boiling point 1 1℃, relative steam density of 2.3g/L, which is decomposed into hypochlorite, chlorine and oxygen by hot water. It is easy to decompose under light, and the solution is relatively stable in cold places.
Chlorine dioxide can react explosively with many chemicals. Very sensitive to heat, vibration, impact and friction, easy to decompose and explode. When heated, illuminated or contacted with organic substances that can promote oxidation, it will promote decomposition and easily cause explosion. When diluted with inert gases such as air, carbon dioxide and nitrogen, the explosiveness is reduced.
Chlorine dioxide is a strong oxidant, and the available chlorine is 2.6 times that of chlorine. It can react violently with many substances. It is very corrosive.
Baidu encyclopedia-chlorine dioxide
Baidu encyclopedia-chlorine dioxide disinfectant