aluminium powder*
. . . metal powder
|
7-12
1
2
-
-
5
-
-
|
4.3
CW
Hazardous Chemical
|
II
|
-
13967429-90-5
|
Toxic by inhalation of particles.
Fine particles or shavings are flammable, burning with an intense flame. Control the risk of inhaling fine particles by working in a fume cupboard, a well-ventilated area or use of approved respiratory protection. Finely divided aluminium reacts violently with metal oxides such as iron oxide ("thermite reaction") to form aluminium oxide and the corresponding metal. Reaction with easily reduced metal oxides, such as lead oxide and copper oxide, is explosive and should not be attempted. The thermite reaction must be carried out with extreme care, and only by an approved teacher. See Appendix F (for required controls of the thermite reaction).
Aluminium powder should generally not be combined with carbon dioxide, chlorinated hydrocarbons or halogens, due to the fire risk. A small-scale teacher demonstration is detailed in Appendix F. Aluminium powder is readily oxidised and does not have a long shelf life. Purchase when required in small batches. Disposal: Solid waste of this chemical may be disposed of in the garbage (to landfill).
Q-Stores
17
See also METAL POWDERS, REDUCTANTS.
and Appendix F.
|
