The polycyclic aromatic sulfur heterocycles (PASH) in the environment is characteristic as the stable nature, not easy to be degraded, strong toxic and potential danger.
有机含硫芳烃化合物（PASH） 性质稳定，不易降解， 毒性极强，具有潜在的危害特征。
2
Third, product characteristic: 1 this non-toxic, does not have the fetid odor, does not have the crystallization, to the human body skin non-corrosive action.