... take place ammonolysis. 4.Its stream has the odor of onion and strong corrosiveness to skins,and strong pungency ... to eyes,mucous membrane and respiratory system,affects the function of liver ,kidney,heart ,lung,central nervous system,even leads ... 0%Usages:It is used widely as one of the important chemical materials, a kind of important methylating agent,widely used in chemical,pharmaceutial,pesticide ...