UN0391: RDX and HMX mixtures
As listed: RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent phlegmatizer by mass
UN0391 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 1.1D.
All §172.101 entries for UN0391
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent phlegmatizer by mass | 1.1D | — | 1.1D |
Open any entry for packaging sections, special provisions, air limits and vessel stowage.
What it means
Label codes (column 6): 1.1D → Explosive 1.1D 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 UN0391 in the current PHMSA Emergency Response Guidebook.
Get the HazmatTable Field Guide poster pack
8 printable hazmat reference posters — reading a table entry, hazard classes, placards, segregation, shipping papers and more. Free, sent to your inbox.
Common questions about UN0391
What is UN0391?
UN0391 is the identification number for RDX and HMX mixtures, wetted RDX and HMX mixtures, desensitized in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN0391?
UN0391 is listed under hazard class 1.1D (explosives).
What packing group is UN0391?
Packing group for UN0391: not assigned. Where several rows exist, the packing group that fits your material decides which row applies.