white or light yellow prismatic crystal,density 2.168,melting point 271 , easy dissolve in water alcohol Property white or light yellow prismatic crystal,density 2.168,melting point 271 , easy dissolve in water alcohol , micro-dissolve in ether, delique- scence,noxious.decomposition tempreture is 320 ,It can inflammation and explosive while mixed with orgnic compound .It has oxidation and ...