UN/NA Number Reference
DOT Class 6.1 Toxic Substance placard

UN 2872: Dibromochloropropanes

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 2872 is assigned the proper shipping name Dibromochloropropanes 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 II. 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 159)

Hazards: Irritating to eyes, skin, respiratory tract. Prolonged exposure may cause serious health effects.

Fire: Use agent appropriate for surrounding fire. Use water to keep containers cool.

Spill: Ventilate area. Use water spray to knock down vapors. Absorb with earth/sand.

Chemical and Physical Properties

1,2-dibromo-3-chloropropane appears as a colorless liquid. Denser than water. Flash point 170 °F. Boiling point 195 °F. Toxic by ingestion and inhalation. Used as a pesticide and fumigant.

CAS Number: 96-12-8
Molecular Formula: C3H5Br2Cl
Molecular Weight: 236.33 g/mol
Color / Form: Colorless liquid when pure
Odor: PUNGENT ODOR
Boiling Point: 385 °F at 760 mmHg (NTP, 1992)
Melting Point: 43 °F (NTP, 1992)
Flash Point: 170 °F (NTP, 1992)
Specific Gravity: 2.08 at 68 °F (NTP, 1992) - Denser than water; will sink
Vapor Pressure: 0.8 mmHg at 70 °F (NTP, 1992)
Vapor Density: 2.09 at 14 °C
Water Solubility: less than 0.1 mg/mL at 64 °F (NTP, 1992)
Log P: log Kow= 2.96

Regulatory Data

CERCLA RQ (40 CFR 302.4)
1 lb
OSHA PEL
0.001 ppm See Section 5212
NIOSH REL
Ca
IDLH
Ca [N
RCRA Waste Code(s)
[object Object]

A release of this material at or above its CERCLA reportable quantity (1 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, T7, 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 2872 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.