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HomeUN NumbersClass 4.2UN2881
Hazard Class 4.2Packing Group I/II/III

UN Number

UN2881

Metal catalyst, dry

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

3 rows in 49 CFR 172.101 for UN2881.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
GMetal catalyst, dry4.2I4.2N34, T21, TP7, TP33, W31None187NoneForbiddenForbiddenC13, 147, 148
GMetal catalyst, dry4.2II4.2IB6, IP2, N34, T3, TP33, W31None187242Forbidden50 kgC13, 147, 148
GMetal catalyst, dry4.2III4.2B135, IB8, IP21, N34, T1, TP33, W31None18724125 kg100 kgC13, 147, 148
  • Sym.: Column 1 symbols, 49 CFR 172.101(b).
  • Description: Column 2, the proper shipping name, 172.101(c).
  • Class: Column 3, hazard class or division, 172.101(d).
  • PG: Column 5, packing group, 172.101(f).
  • Labels: Column 6, label codes, 172.101(g).
  • Special provisions: Column 7, codes explained in 49 CFR 172.102, 172.101(h).
  • 8A / 8B / 8C: Packaging exceptions, non-bulk and bulk sections of 49 CFR part 173 (an entry of 202 means 173.202), 172.101(i).
  • 9A / 9B: Maximum quantity per package on passenger aircraft or rail, and on cargo aircraft only, 172.101(j).
  • 10A / 10B: Vessel stowage location and other stowage and handling codes, 172.101(k).

Division 4.2 — Spontaneously Combustible Material

See the full class list

Spontaneously combustible material (Division 4.2) includes a pyrophoric material — a liquid or solid that, even in small quantities and without an external ignition source, can ignite within five minutes after coming in contact with air — and self-heating material.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN2880Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixture, with not less than 5.5% but not more than 16% waterUN2900Infectious substances, affecting animals only

Nearby Class 4.2 UN Numbers

UN2793Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heatingUN2845Pyrophoric liquids, organic, n.o.sUN2846Pyrophoric solids, organic, n.o.sUN2870Aluminum borohydride or Aluminum borohydride in devicesUN29409-Phosphabicyclononanes or Cyclooctadiene phosphinesUN3088Self-heating solid, organic, n.o.sUN3126Self-heating solid, corrosive, organic, n.o.sUN3127Self-heating solid, oxidizing, n.o.s.
View the full Class 4.2 list →

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