UN 236: Zirconium hydride

DOT Classification and Shipping

UN 236 is assigned the proper shipping name Zirconium hydride in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 1.3C Explosive material. Required label(s): 1.3.

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 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

Zirconium hydride appears as a grayish black solid. No reaction with water under normal conditions. Easily ignited and burns with an intense flame. Water will increase the intensity of the fire.

Need the full interactive record? Open UN 236 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.