UN/NA Number Reference
DOT Class 3 Flammable Liquid placard

UN 2260: Tripropylamine

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 2260 is assigned the proper shipping name Tripropylamine in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 3 Flammable Liquid material, Packing Group III. Required label(s): 3, 8.

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 132)

Hazards: HIGHLY FLAMMABLE. CORROSIVE. Causes burns. Vapors may form explosive mixture with air.

Fire: Alcohol-resistant foam, dry chemical, CO2. Do not use water jet. Cool containers.

Spill: Eliminate ignition sources. Do not touch. Stop leak if safe. Use foam.

Chemical and Physical Properties

Tripropylamine appears as a water-white liquid. Flash point near 125 °F. Less dense than water. May be mildly toxic by ingestion and inhalation. Used as a solvent.

CAS Number: 102-69-2
Molecular Formula: C9H21N
Molecular Weight: 143.27 g/mol
Color / Form: Water white liquid
Odor: Amine odor
Boiling Point: 313 F
Melting Point: -136.3 °F (NTP, 1992)
Flash Point: 98 F
Autoignition: 356 °F (USCG, 1999)
Specific Gravity: 0.754 (floats on water)
Vapor Pressure: less than 1 mmHg at 68 F
Vapor Density: 4.9 (heavier than air)
Water Solubility: less than 1 mg/mL at 66 F
Log P: log Kow= 2.79

Special Provisions

49 CFR 172.102 special provision codes for this entry: B1, IB3, 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 2260 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.