UN1500: Sodium nitrite
UN1500 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 5.1, packing group III.
All §172.101 entries for UN1500
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| Sodium nitrite | 5.1 | III | 5.1, 6.1 |
Open any entry for packaging sections, special provisions, air limits and vessel stowage.
What it means
Packing group ranks danger within the class: PG III = minor danger.
Label codes (column 6): 5.1, 6.1 → Oxidizer label + subsidiary Poison / Toxic label.
UN numbers are recognized for international and domestic transport.
Reportable quantity (RQ)
- Sodium nitrite is listed in Appendix A with an RQ of 100 lb (45.4 kg).
If a single package contains the RQ or more, the material is also a hazardous substance and “RQ” is added to the shipping description. How RQ is measured →
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 UN1500 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN1500
What is UN1500?
UN1500 is the identification number for Sodium nitrite in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN1500?
UN1500 is listed under hazard class 5.1 (oxidizer).
What packing group is UN1500?
Packing group for UN1500: III. Where several rows exist, the packing group that fits your material decides which row applies.