Synonym(s): Arsenic triselenide
Formula: As2Se3
Formula weight: 386.72
Purity: 99.999% (metals basis)
CAS Number: 1303-36-2
UN Number: UN3077
Hazard Class: 9
Packing Group: III
Harmonized Tariff Code: 2842.90
Hazard Statements: H330
Fatal if inhaled.
Precautionary Statements: P260-P284-P304+P340-P320-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Wear respiratory protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Specific treatment is urgent (see label). Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 23/25-50/53
Toxic by inhalation and if swallowed. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Phrases: 20/21-28-45-60-61
When using do not eat, drink or smoke. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and/or its container must be disposed of as hazardous waste. Avoid release to the environment. Refer to special instructions/Safety data sheets