Germanium selenide(GeSe)

151.6 g·mol−1

5.6 g/mL at 25 °C(lit.)

670 °C(lit.)

black crystalline powder

R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed
R23/25 - Toxic by inhalation and if swallowed
R33 - Danger of cumulative effects
R36/37/38 - Irritating to eyes, respiratory system and skin
R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment

S20/21 - When using do not eat, drink or smoke
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S28 - After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
S60 - This material and its container must be disposed of as hazardous waste
S61 - Avoid release to the environment. Refer to special instructions/safety data sheet

T, N

UN 3283 6.1 / PG 3