HazMat Tool — substance information

Tetrafluoromethane or Refrigerant gas R 14

HMT 15 June 2026

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Source: PubChem (HSDB, 19.11.2019)

75-73-0

n/a

n/a

Source: 49 CFR §172 (15 June 2026)

UN 1982

n/a

(9A) Passenger aircraft/rail	75 kg
(9B) Cargo aircraft only	150 kg

(10A) Location	A Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel. Source: 49 CFR §172.101(k)
(10B) Other	n/a

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

	Must not be loaded, transported, or stored together in the same vehicle or facility.
	May be loaded, transported, or stored together.
	May be loaded, transported, or stored together only with restrictions.

UN / ID	Proper shipping name	Hazard class
UN 3297	Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide	2.2
UN 3299	Ethylene oxide and tetrafluoroethane mixture with not more than 5.6 percent ethylene oxide	2.2
UN 1958	1,2-Dichloro-1,1,2,2- tetrafluoroethane or Refrigerant gas R 114	2.2
UN 3159	1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a	2.2
UN 1021	1-Chloro-1,2,2,2-tetrafluoroethaneor Refrigerant gas R 124	2.2
UN 3521	Silicon tetrafluoride, adsorbed	2.3