Heavy metal toxicity
Highly reactive metals (Alkali metals)
Examples: lithium, sodium, potassium
Dangerous fire risks (release H2)
Ignite spontaneously
Flammable as dusts
Examples: magnesium, zinc, aluminium
Pyrophoric: uranium
Hydrides: (Hydrogen + Alkali metals)
Example: LiH2
Reducing agents (react with H2O – release H2)
Peroxides:
Example: sodium peroxide yield O2