Characteristic

Bismuth selenide (Bi₂Se₃) is a gray compound of bismuth and selenium also known as bismuth(III) selenide. It is a semiconductor and a thermoelectric material.

Chemical formula：Bi₂Se₃

CAS#:12068-69-8

Molar mass：654.8 g/mol 

Appearance：Dull grey 

Density：6.82 g/cm^{^3}

Melting point：710 °C (1,310 °F; 983 K)

Solubility in water：insoluble

Solubility：insoluble in organic solvents

soluble in strong acids 

Crystal structure：rhombohedral

Bi2Se3_MSDS.pdf