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UN identification number

UN3408: Lead perchlorate, solution

UN3408 appears 2 times in the Hazardous Materials Table (49 CFR §172.101). Hazard class 5.1, packing group II, III.

ID numberUN3408
Hazard class5.1
Packing groupII, III
Label codes5.1, 6.1

All §172.101 entries for UN3408

Proper shipping nameClassPGLabels
Lead perchlorate, solution5.1II5.1, 6.1
Lead perchlorate, solution5.1III5.1, 6.1

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

What it means

5.1
Class 5.1 — Oxidizer. Materials that give up oxygen and can cause or intensify the burning of other materials.

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

Example basic description

UN3408, Lead perchlorate, solution, 5.1, 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 UN3408 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN3408

What is UN3408?

UN3408 is the identification number for Lead perchlorate, solution in the DOT Hazardous Materials Table (49 CFR §172.101).

What hazard class is UN3408?

UN3408 is listed under hazard class 5.1 (oxidizer).

What packing group is UN3408?

Packing group for UN3408: II, III. 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.