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UN identification number

UN1385: Sodium sulfide

As listed: Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization

UN1385 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 4.2, packing group II.

ID numberUN1385
Hazard class4.2
Packing groupII
Label codes4.2

All §172.101 entries for UN1385

Open any entry for packaging sections, special provisions, air limits and vessel stowage.

What it means

4.2
Class 4.2 — Spontaneously combustible. Materials that can heat up and ignite on their own in air.

Packing group ranks danger within the class: PG II = medium danger.

Label codes (column 6): 4.2 → Spontaneously combustible label.

UN numbers are recognized for international and domestic transport.

Example basic description

UN1385, Sodium sulfide, anhydrous or Sodium sulfide, 4.2, PG II

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

  1. Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
  2. Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
  3. Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
  4. Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
  5. Emergency response. Find the response guide for UN1385 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN1385

What is UN1385?

UN1385 is the identification number for Sodium sulfide, anhydrous or Sodium sulfide in the DOT Hazardous Materials Table (49 CFR §172.101).

What hazard class is UN1385?

UN1385 is listed under hazard class 4.2 (spontaneously combustible).

What packing group is UN1385?

Packing group for UN1385: II. Where several rows exist, the packing group that fits your material decides which row applies.

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Source: Hazardous Materials Table (49 CFR §172.101), eCFR.gov — current as of Oct 23, 2026. View the official table. Reference only — verify current requirements before shipping.