UN1339: Phosphorus heptasulfide
As listed: Phosphorus heptasulfide, free from yellow or white phosphorus
UN1339 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 4.1, packing group II.
All §172.101 entries for UN1339
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| Phosphorus heptasulfide, free from yellow or white phosphorus | 4.1 | II | 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 II = medium 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 UN1339 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN1339
What is UN1339?
UN1339 is the identification number for Phosphorus heptasulfide in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN1339?
UN1339 is listed under hazard class 4.1 (flammable solid).
What packing group is UN1339?
Packing group for UN1339: II. Where several rows exist, the packing group that fits your material decides which row applies.