UN/NA Number Reference
DOT Class 5.1 Oxidizer placard

UN 2015: Hydrogen peroxide, stabilized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 2015 is assigned the proper shipping name Hydrogen peroxide, stabilized in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 5.1 Oxidizer material, Packing Group I. Required label(s): 5.1, 8.

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 143)

Hazards: May explode from heat or contamination. Strong oxidizer. May ignite combustibles.

Fire: Flood with water from distance. Cool containers. Evacuate area if fire reaches cargo.

Spill: Keep combustibles away. Do not touch. Use water spray.

Chemical and Physical Properties

Hydrogen peroxide, aqueous solution, stabilized, with more than 60% hydrogen peroxide appears as a colorless liquid. Vapors may irritate the eyes and mucous membranes. Under prolonged exposure to fire or heat containers may violently rupture due to decomposition. Used to bleach textiles and wood pulp, in chemical manufacturing and food processing.

CAS Number: 7722-84-1
Molecular Formula: H2O2
Molecular Weight: 34.01 g/mol
Color / Form: Colorless liquid
Odor: ... Slightly sharp odor ...
Boiling Point: 302°F (150°C)
Melting Point: 31.3 °F (NTP, 1992)
Autoignition: Not flammable. (USCG, 1999)
Specific Gravity: 1.45 (sinks in water)
Vapor Pressure: 1 mmHg
Vapor Density: 1.02 (heavier than air)
Water Solubility: Miscible (fully soluble)
Log P: -1.36
pH: Weak acid; H2O2 concn wt% = 35, 50, 70, 90; corresponding true pH: 4.6, 4.3, 4.4, 5.1

Regulatory Data

CERCLA RQ (40 CFR 302.4)
1 lb
EPCRA TPQ (40 CFR 355)
1000 lb
OSHA PEL
TWA 1 ppm (1.4 mg/m 3 )
NIOSH REL
TWA 1 ppm (1.4 mg/m 3 )
IDLH
75 ppm

A release of this material at or above its CERCLA reportable quantity (1 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: 12, B53, B80, B81, B85, T9, TP2, TP6, TP24, TP37. 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 2015 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.