UN/NA Number Reference
DOT Class 6.1 Toxic Substance placard

UN 2074: Acrylamide, solid

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 2074 is assigned the proper shipping name Acrylamide, solid in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 6.1 Toxic Substance material, Packing Group III. Required label(s): 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 153)

Hazards: TOXIC. Combustible. Corrosive. Causes burns. Toxic fumes when heated.

Fire: Small: dry chemical, CO2, water spray. Large: water spray, foam.

Spill: Do not touch. Stop leak if safe. Use water spray to reduce vapor.

Chemical and Physical Properties

Acrylamide appears as white crystalline solid shipped either as a solid or in solution. A confirmed carcinogen. Toxic by skin absorption. Less dense than water and soluble in water. May be toxic by ingestion. Used for sewage and waste treatment, to make dyes, adhesives. The solid is stable at room temperature, but upon melting may violently polymerize. Toxic, irritating to skin, eyes, etc.

CAS Number: 79-06-1
Molecular Formula: C3H5NO
Molecular Weight: 71.08 g/mol
Color / Form: Flake-like crystals from benzene
Odor: Odorless
Boiling Point: 189 F
Melting Point: 184 °F (EPA, 1998)
Flash Point: 280 F
Autoignition: 464 °F (USCG, 1999)
Specific Gravity: 1.122
Vapor Pressure: 0.007 mmHg
Vapor Density: 2.45 (heavier than air)
Water Solubility: greater than or equal to 100 mg/mL at 72 °F (NTP, 1992)
Log P: log Kow = -0.67
pH: pH = 5.0-6.5 /50% aqueous solution/

Regulatory Data

CERCLA RQ (40 CFR 302.4)
5000 lb
EPCRA TPQ (40 CFR 355)
1000 lb
OSHA PEL
TWA 0.3 mg/m 3 [skin]
NIOSH REL
Ca TWA 0.03 mg/m 3 [skin]
IDLH
Ca [60 mg/m 3 ]
RCRA Waste Code(s)
[object Object]

A release of this material at or above its CERCLA reportable quantity (5000 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: IB8, IP3, T1, TP33. 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 2074 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.