UN1053 — Hydrogen sulfide

Class 2.3

Quick facts: UN1053

What it is
Hydrogen sulfide
Hazard class
2.3 (subsidiary 2.1)
Packing group
None assigned
Label
Division 2.3 - Toxic Gas · Division 2.1 - Flammable Gas
Packaging (49 CFR 173)
Non-bulk §173.304 · Bulk §173.314, 315
Air limit per package
Passenger aircraft: Forbidden · Cargo aircraft: Forbidden
Special provisions
2, B9, B14, N89

Source: 49 CFR 172.101 Hazardous Materials Table — UN1053 (2025-01-01)

UN Number
UN1053
Hazard Class
2.3 (sub-risk 2.1)
Packing Group
Not assigned

Hazard Labels / Marks

  • Division 2.3 - Toxic Gas
  • Division 2.1 - Flammable Gas

Source: 49 CFR §172.101 Hazardous Materials Table · 49 CFR §172.101 (2025-01-01)

Reference data transcribed from the published Dangerous Goods List. It is not legal advice and may not capture entry-specific exceptions, special provisions or packing-group ranges. Always verify against the current regulation edition for a specific shipment.

This is the reference entry for UN1053.

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