White metal, crystal system, fragile even in the room temperature,
week electricity and heat conductibility,strong anti-magnetic,
stable in the air, generate hydroxide with water generate hysroxide with water,
genertate halide with halogen.

Symbol:MMEB4N8

Bi>=99.998%
Freign Mat.<=ppm
Ag:40
Cl:40
Cu:10
Pb:20
Fe:50
Sb:10
Zn:10
Te:10
As:20