UN/NA Number Reference
DOT Class 3 Flammable Liquid placard

UN 1302: Vinyl ethyl ether, stabilized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 1302 is assigned the proper shipping name Vinyl ethyl ether, stabilized in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 3 Flammable Liquid material, Packing Group I. Required label(s): 3.

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 128)

Hazards: HIGHLY FLAMMABLE. Vapors may form explosive mixtures with air. Vapors heavier than air. Runoff may pollute waterways.

Fire: Small: dry chemical, CO2, water spray, regular foam. Large: water spray, fog, regular foam. Do not use straight streams.

Spill: Eliminate ignition sources. Stop leak if safe. Use foam to suppress vapors. Absorb with earth, sand, or other absorbent. Prevent runoff to waterways.

Chemical and Physical Properties

Vinyl ethyl ether appears as a clear colorless low-boiling liquid (35-36 °C) with an ether-like odor. Flash point below -50 °F. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a container, the container may rupture violently. Less dense than water and slightly soluble in water. Hence floats on water. Vapors are heavier than air.

CAS Number: 109-92-2
Molecular Formula: C4H8O
Molecular Weight: 72.11 g/mol
Color / Form: Colorless liquid
Boiling Point: 96 F
Melting Point: -175 °F (USCG, 1999)
Flash Point: -50 F
Autoignition: 395 °F (USCG, 1999)
Specific Gravity: 0.7589
Vapor Pressure: 511.0 mmHg
Vapor Density: 2.5 (heavier than air)
Water Solubility: In water, 7800 mg/L at 25 °C
Log P: log Kow = 1.04

Special Provisions

49 CFR 172.102 special provision codes for this entry: 387, T11, TP2. 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 1302 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.