UN/NA Number Reference
DOT Class 3 Flammable Liquid placard

UN 2362: 1,1-Dichloroethane

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 2362 is assigned the proper shipping name 1,1-Dichloroethane 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 130)

Hazards: Flammable. Toxic vapor. Harmful if inhaled or absorbed. May accumulate in low areas.

Fire: Dry chemical, CO2, foam, water spray. Do not use straight streams.

Spill: Eliminate ignition sources. Stop leak. Absorb with sand/earth. Prevent waterway contamination.

Chemical and Physical Properties

1,1-dichloroethane appears as a colorless liquid with an ether-like odor. Slightly soluble in water and slightly denser than water. Flash point below 70 °F. Vapors denser than air. Used to make other chemicals.

CAS Number: 75-34-3
Molecular Formula: C2H4Cl2
Molecular Weight: 98.96 g/mol
Color / Form: Colorless, oily liquid
Odor: Aromatic ethereal odor
Boiling Point: 135.1 F
Melting Point: -143 °F (NTP, 1992)
Flash Point: 22 F
Autoignition: 856 °F (USCG, 1999)
Specific Gravity: 1.174 (sinks in water)
Vapor Pressure: 234 mmHg at 77 F
Vapor Density: 3.44 (heavier than air)
Water Solubility: less than 1 mg/mL at 68 F
Log P: log Kow = 1.79
pH: Neutral

Regulatory Data

CERCLA RQ (40 CFR 302.4)
1000 lb
OSHA PEL
TWA 100 ppm (400 mg/m 3 )
NIOSH REL
TWA 100 ppm (400 mg/m 3 )
IDLH
3000 ppm
RCRA Waste Code(s)
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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: IB2, T4, TP1. 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 2362 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.