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HomeUN NumbersClass 8UN2031
Hazard Class 8Packing Group II/I

UN Number

UN2031

Nitric acid other than red fuming, with at least 65 percent, but not more than 70 percent nitric acid

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

4 rows in 49 CFR 172.101 for UN2031.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Nitric acid other than red fuming, with at least 65 percent, but not more than 70 percent nitric acid8II8, 5.1B2, B47, B53, IB2, IP15, T8, TP2154158242Forbidden30 LD53, 58, 66, 74, 89, 90
—Nitric acid other than red fuming, with more than 20 percent and less than 65 percent nitric acid8II8A212, B2, B47, B53, IB2, IP15, T8, TP2154158242Forbidden30 LD44, 66, 53, 58, 74, 89, 90
—Nitric acid other than red fuming with not more than 20 percent nitric acid8II8B2, B47, B53, IB2, T8, TP21541582421 L30 LD53, 58
—Nitric acid other than red fuming, with more than 70 percent nitric acid8I8, 5.1B47, B53, T10, TP2, TP12, TP13None158243Forbidden2.5 LD44, 53, 58, 66, 89, 90, 110, 111
  • 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).

Class 8 — Corrosive Material

See the full class list

"Corrosive material" (Class 8) is a liquid or solid that causes irreversible damage to human skin at the site of contact within a specified period of time, or a liquid (or solid that may become liquid in transportation) with a severe corrosion rate on steel or aluminum.

Source: 49 CFR 173.136 (eCFR).

Previous / next UN number

UN2030Hydrazine aqueous solution, with more than 37% hydrazine, by massUN2032Nitric acid, red fuming

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