Euchlorine is water soluble, it has properties of high effective, instant effective, wide range and safety. Euchlorine has strong fungicide effect, even at dosage of 20ppm, the fungicide ratio can reach to 99%. Euchlorine has good stability, can be preserved for half year with less than 1% loss of effective chlorine, and cannot be deteriorated at 120℃, cannot be flamed.