UN/NA Number Reference
DOT Class 3 Flammable Liquid placard

UN 1093: Acrylonitrile, stabilized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 1093 is assigned the proper shipping name Acrylonitrile, 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, 6.1.

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 131)

Hazards: HIGHLY FLAMMABLE. TOXIC. May be fatal if inhaled, swallowed, or absorbed through skin. Vapors heavier than air.

Fire: Small: dry chemical, CO2, water spray, alcohol-resistant foam. Large: water spray, fog, alcohol-resistant foam.

Spill: Eliminate ignition sources. Do not touch. Stop leak if safe. Use vapor-suppressing foam. Ventilate area.

Chemical and Physical Properties

Acrylonitrile, stabilized appears as a clear colorless liquid with a strong pungent odor. Flash point 32 °F. Prolonged exposure to the vapors or skin contact harmful. Density 6.7 lb / gal. Vapors heavier than air. Combustion produces toxic oxides of nitrogen. Requires storage and handling in closed systems. Used in insecticides and to make plastics, fibers and other chemicals. Rate of onset: Immediate Persistence: Minutes to hours Odor threshold: 17 ppm Source/use/other hazard: Plastics, coatings, adhesives industries; dyes; pharmaceuticals; flam gas.

CAS Number: 107-13-1
Molecular Formula: C3H3N
Molecular Weight: 53.06 g/mol
Color / Form: Clear, colorless liquid at room temperature
Odor: Practically odorless, or with a very slight odor of peach kernels
Boiling Point: 171°F (77°C)
Melting Point: -116 °F (EPA, 1998)
Flash Point: 32°F (0°C)
Autoignition: 898 °F (USCG, 1999)
Specific Gravity: 0.81 (floats on water)
Vapor Pressure: 100 mmHg at 73.4 °F (EPA, 1998)
Vapor Density: 1.83 (heavier than air)
Water Solubility: Soluble (7.3 g/100mL)
Log P: log Kow = 0.25
pH: pH = 6.0-7.5

Regulatory Data

CERCLA RQ (40 CFR 302.4)
100 lb
EPCRA TPQ (40 CFR 355)
10000 lb
OSHA PEL
[1910.1045] TWA 2 ppm C 10 ppm [15-minute] [skin]
NIOSH REL
Ca TWA 1 ppm C 10 ppm [15-minute] [skin]
IDLH
Ca [60 ppm]
RCRA Waste Code(s)
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A release of this material at or above its CERCLA reportable quantity (100 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, B9, T14, TP2, 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 1093 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.