What is UN 2031?
UN 2031: Nitric acid. US class 8; PG II, I.
- UN number
- UN 2031
- Proper shipping name (first listed)
- Nitric acid
- US class or division (first name)
- 8
- Packing groups (first name)
- II, I
- Source rows for this UN number
- 4
- Table jurisdiction
- United States HMT; not an ADR table
- Version
- 49 CFR 172.101, revised 1 October 2025
- Official source
- US Government Publishing Office, 49 CFR 172.101 HMT
Source row 2321
Proper shipping name: Nitric acid.
Full column-2 description: Nitric acid other than red fuming, with at least 65 percent, but not more than 70 percent nitric acid
US hazard class or division: 8. Packing group: II.
Column-1 symbols: Blank in source.
Source row 2322
Proper shipping name: Nitric acid.
Full column-2 description: Nitric acid other than red fuming, with more than 20 percent and less than 65 percent nitric acid
US hazard class or division: 8. Packing group: II.
Column-1 symbols: Blank in source.
Source row 2323
Proper shipping name: Nitric acid.
Full column-2 description: Nitric acid other than red fuming with not more than 20 percent nitric acid
US hazard class or division: 8. Packing group: II.
Column-1 symbols: Blank in source.
Source row 2325
Proper shipping name: Nitric acid.
Full column-2 description: Nitric acid other than red fuming, with more than 70 percent nitric acid
US hazard class or division: 8. Packing group: I.
Column-1 symbols: Blank in source.
Before shipping
Check the current ADR edition before shipping. This is a US HMT reference snapshot, not ADR classification or shipping, legal or safety advice.
This page omits the other HMT columns. Check the full official table, its symbols and applicable provisions for your consignment.
Found a data error?
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