United Nations/North American Number Datasheet

UN/NA 2556

4.1 - Flammable solid

Emergency Response Guidebook (ERG, 2016)

Material Names

  • Nitrocellulose with alcohol
  • Nitrocellulose with not less than 25% alcohol
ERG book cover

Response Guide 113

Flammable Solids - Toxic (Wet / Desensitized Explosive) Sólidos Inflamables - Tóxicos (Explosivos Húmedos / Desensibilizados) Solides Inflammables - Toxiques (Explosifs Humides / Désensibilisés)


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)

UN/NA Proper Shipping Name Hazard Class Labels Notes*

* There are three notes: (1) whether the displayed information is for domestic (U.S.) or international shipping (if neither is specifically indicated, it applies to both), (2) whether the proper shipping name must include one or more technical names of the hazardous material in parentheses, and (3) whether the hazardous material is an inhalation hazard.
UN Nitrocellulose with alcohol with not less than 25 percent alcohol by mass, and with not more than 12.6 percent nitrogen, by dry mass 4.1 4.1

  4.1 - Flammable solid