UN/NA Number Reference
DOT Class 1.1D Explosive placard

UN 75: Diethyleneglycol dinitrate, desensitized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 75 is assigned the proper shipping name Diethyleneglycol dinitrate, desensitized in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 1.1D Explosive material. Required label(s): 1.1.

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 112)

Hazards: May explode or be projected if heated. Fragments may travel great distances. Fire may produce irritating or toxic gases.

Fire: DO NOT fight fire when it reaches cargo. Evacuate area and let burn. Fight fire from maximum distance.

Spill: Do not touch or walk through spilled material. Isolate spill area immediately.

Chemical and Physical Properties

Diethylene glycol dinitrate appears as a liquid. Extremely sensitive explosive if not properly desensitized with a phlegmatizer. Slightly soluble in alcohol and soluble in ether. Slightly toxic by ingestion. May explode under prolonged exposure to heat or fire or from sudden shock. The primary hazard is the blast effect of an instantaneous explosion and not flying projectiles and fragments. Used as a rocket propellant.

CAS Number: 693-21-0
Molecular Formula: C4H8N2O7
Molecular Weight: 196.12 g/mol
Color / Form: Liquid
Boiling Point: 322 F
Melting Point: Freezing point: -11.3 °C
Specific Gravity: 1.377 (sinks in water)
Vapor Pressure: 0.0059 mmHg
Vapor Density: 6.76 (heavier than air)
Water Solubility: In water, 3.9X10+3 mg/L at 25 °C
Log P: log Kow = 0.98

Regulatory Data

RCRA Waste Code(s)
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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.