UN/NA Number Reference
DOT Class 3 Flammable Liquid placard

UN 1917: Ethyl acrylate, stabilized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 1917 is assigned the proper shipping name Ethyl acrylate, 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 II. 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 129)

Hazards: Flammable. Irritating vapor. May cause dizziness. Toxic if inhaled or absorbed through skin.

Fire: Alcohol-resistant foam, dry chemical, CO2, water spray.

Spill: Eliminate ignition sources. Ventilate area. Absorb with earth or sand.

Chemical and Physical Properties

Ethyl acrylate, stabilized appears as a clear colorless liquid with an acrid odor. Flash point 60 °F. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently. Auto ignition temperature 721 °F (383 °C) (NTP). Less dense than water. Vapors heavier than air. Used to make paints and plastics.

CAS Number: 140-88-5
Molecular Formula: C5H8O2
Molecular Weight: 100.12 g/mol
Color / Form: Colorless liquid
Odor: Acrid penetrating odor
Boiling Point: 212 F
Melting Point: -96.2 °F (NTP, 1992)
Flash Point: 48 F
Autoignition: 721 °F (USCG, 1999)
Specific Gravity: 0.923
Vapor Pressure: 29.3 mmHg
Vapor Density: 3.45 (heavier than air)
Water Solubility: 10 to 50 mg/mL at 70 °F (NTP, 1992)
Log P: log Kow = 1.32

Regulatory Data

CERCLA RQ (40 CFR 302.4)
1000 lb
OSHA PEL
TWA 25 ppm (100 mg/m 3 ) [skin]
NIOSH REL
Ca
IDLH
Ca [300 ppm]
RCRA Waste Code(s)
[object Object]

A release of this material at or above its CERCLA reportable quantity (1000 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: 387, IB2, T4, TP1, TP13. 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 1917 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.