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12849 1303-36-2 Arsenic(III) selenide, 99.999% (metals basis) Arsenic triselenide Alfa Aesar


Certificate of Analysis

Arsenic(III) selenide, 99.999% (metals basis)

CAS: 1303-36-2 MDL: MFCD00014166  EINECS: 215-119-5
UN#:UN3077Hazard Class:9Packing Group:III
Alternate Name: Arsenic triselenide


Pricing and Availability

Size ($) Price Your Price Quantity Options Availability
0.5g 28.70 Check Availability Add to Favorites Enter qty and click checkbox
5g 150.00 Check Availability Add to Favorites Enter qty and click checkbox
25g 681.00 Check Availability Add to Favorites Enter qty and click checkbox

Chemical Properties

Formula: As2Se3  Melting point: 260°
Formula weight: 386.72  Density: 4.75
Form: 1-6mm Fused Pieces 


For vacuum deposition

Other References

Merck: 14,805
UN#: UN3077
Harmonized Tariff Code: 2842.90

GHS Hazard and Precautionary Statements

Hazard Statements : H330-H400-H410

Fatal if inhaled. Very toxic to aquatic life. Very toxic to aquatic life with long lasting effects.

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.

ToxicDangerous for the environment

Risk & Safety

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
Toxic Dangerous for the environment
RTECS: CG2285000