UN 2495: Iodine pentafluoride

DOT Classification and Shipping

UN 2495 is assigned the proper shipping name Iodine pentafluoride in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 5.1 Oxidizer material, Packing Group I. Required label(s): 5.1, 6.1, 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 144)

Hazards: Oxidizer. Reacts with water. May produce toxic or corrosive solutions.

Fire: DO NOT use water directly. Use dry chemical, sand.

Spill: Keep material dry. Keep combustibles away.

Chemical and Physical Properties

Iodine pentafluoride appears as a toxic colorless fuming liquid (m.p. 9 °C). Decomposed by water to iodine and hydrofluoric acid. Contact with organic materials may cause their ignition. Corrosive to metals and tissue. Prolonged exposure of the container to fire or heat may result in their violent rupturing and rocketing. Prolonged exposure to low concentrations or short term exposure to high concentrations may result in adverse health effects.

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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.