UN3368: Trinitrobenzoic acid, wetted
As listed: Trinitrobenzoic acid, wetted with not less than 10% water by mass
UN3368 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 4.1, packing group I.
All §172.101 entries for UN3368
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| Trinitrobenzoic acid, wetted with not less than 10% water by mass | 4.1 | I | 4.1 |
Open any entry for packaging sections, special provisions, air limits and vessel stowage.
What it means
Packing group ranks danger within the class: PG I = great danger.
Label codes (column 6): 4.1 → Flammable solid label.
UN numbers are recognized for international and domestic transport.
Example basic description
Proper shipping name shown without the table's italic descriptive text. Order per §172.202: ID number, proper shipping name, hazard class, packing group. Example only — add technical names, “RQ”, quantities and other elements your shipment requires.
What to check next
- Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
- Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
- Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
- Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
- Emergency response. Find the response guide for UN3368 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN3368
What is UN3368?
UN3368 is the identification number for Trinitrobenzoic acid, wetted in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN3368?
UN3368 is listed under hazard class 4.1 (flammable solid).
What packing group is UN3368?
Packing group for UN3368: I. Where several rows exist, the packing group that fits your material decides which row applies.