United Nations/North American Number Datasheet

UN/NA 2003

Emergency Response Guidebook (ERG, 2016)

Material Names

  • Metal alkyls, water-reactive, n.o.s.
  • Metal aryls, water-reactive, n.o.s.
ERG book cover

Response Guide 135

Substances - Spontaneously Combustible Sustancias - Espontáneamente Combustibles Substances - Spontanément Inflammables


There are no initial isolation and protective action distances listed in the ERG.

The ERG doesn't predict that large amounts of toxic-by-inhalation gases will be produced if this material is spilled in water.

Hazmat Table (49 CFR 172.101)

Note: UN/NA 2003 doesn't appear in the 49 CFR Hazmat Table.