UN/NA Number Reference
DOT Class 4.1 Flammable Solid placard

UN 1354: Trinitrobenzene, wetted

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 1354 is assigned the proper shipping name Trinitrobenzene, wetted in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 4.1 Flammable Solid material, Packing Group I. Required label(s): 4.1.

Packing group indicates the degree of danger within a hazard class: PG I is high danger, PG II medium, PG III low. The proper shipping name, hazard class, UN number, and packing group together form the basic shipping description that must appear on shipping papers and, where required, on the package and placard.

Emergency Response (ERG Guide 113)

Hazards: Picric acid, picrates, and similar wetted explosives. KEEP WET - dry material may detonate from friction, heat, or shock. Heating reduces water content and increases explosion risk.

Fire: Flood with water from maximum distance. Cool containers with water. DO NOT allow material to dry out. Evacuate if fire reaches cargo.

Spill: Do not touch. Keep material wet at all times. Cover with wet sand, wet earth, or water-saturated material. Eliminate friction sources. No metal-on-metal contact.

Chemical and Physical Properties

Trinitrobenzene, wetted with not less than 30% water appears as a light yellow crystalline sludge or slurry. Burns but may require some effort to ignite. A high explosive when dry. Easily ignited and burns very vigorously when dry. Insoluble in water. Produces toxic oxides of nitrogen during combustion.

CAS Number: 99-35-4
Molecular Formula: C6H3N3O6
Molecular Weight: 213.10 g/mol
Color / Form: Yellow crystals
Odor: Odorless
Boiling Point: 599 F
Melting Point: 121.3 °C
Specific Gravity: 1.688
Vapor Pressure: 0.0000032 mmHg
Water Solubility: Solubility in water, 278 mg/L at 15 °C
Log P: log Kow = 1.18

Regulatory Data

CERCLA RQ (40 CFR 302.4)
10 lb
RCRA Waste Code(s)
[object Object]

A release of this material at or above its CERCLA reportable quantity (10 lb) requires immediate notification to the National Response Center at 800-424-8802.

Special Provisions

49 CFR 172.102 special provision codes for this entry: 23, A2, A8, A19, N41, W31. These codes modify the general requirements (packaging, quantity limits, exceptions) for this specific material. Look up each code in 49 CFR 172.102 for the full text.

Need the full interactive record? Open UN 1354 in the SpillNerd lookup tool for the live database entry with placard graphics, GHS pictograms, full segregation tables, and synonym search. For another material, use the UN number and chemical lookup.

Reference data compiled from the DOT Hazardous Materials Table (49 CFR 172.101), the 2024 Emergency Response Guidebook, and public chemical databases (PubChem, NIOSH, EPA). Always verify the correct shipping description against the current regulation and the manufacturer's SDS Section 14 before shipping.