Aluminum selenide

  • Aluminum sesquiselenide
  • Dialuminum triselenide
Formula
Al2Se3
Structure
Description
Light brown pieces with a strong garlic or fishy odor.
Uses
Substance is used in prepn of hydrogen selenide.

Registry Numbers and Inventories.
CAS
1302-82-5
EC (EINECS/ELINCS)
215-110-6
UN (DOT)
3283
Merck
12,376
Beilstein/Gmelin
1472179 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
Al2Se3
Formula mass
290.84
Melting point, °C
960
Density
3.43 g/cm3
Solubility in water
Decomposes.

Hazards and Protection.
Storage
Store in a cool, dry area. Store in a tightly sealed container. Store in an inert atmosphere.
Handling
Aluminum selenide is unstable in air. Handle and store in a controlled environment and in an inert gas such as argon.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Unstable. Decomposes in air.
Incompatibilities
Strong acids and air.
Decomposition
Hydrogen selenide, selenium dioxide and aluminum oxide.

Fire.
Fire fighting
Use method most appropriate to fight surrounding fire.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause gastrointestinal disturbances.
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Avoid any skin contact. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
3283
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
SEC