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ADR Class 2

249 UN numbers are classified in ADR Class 2. Overview of dangerous goods in Class 2 per ADR 2025.

UN 1001 ACETYLENE, DISSOLVED 2 UN 1002 AIR, COMPRESSED 2 UN 1003 AIR, REFRIGERATED LIQUID 2 UN 1005 AMMONIA, ANHYDROUS 2 UN 1006 ARGON, COMPRESSED 2 UN 1008 BORON TRIFLUORIDE 2 UN 1009 BROMOTRIFLUORO-METHANE (REFRIGERANT G... 2 UN 1010 BUTADIENES, STABILIZED or BUTADIENES ... 2 UN 1011 BUTANE 2 UN 1012 BUTYLENE 2 UN 1013 CARBON DIOXIDE 2 UN 1016 CARBON MONOXIDE, COMPRESSED 2 UN 1017 CHLORINE 2 UN 1018 CHLORODIFLUORO-METHANE (REFRIGERANT GAS R 22) 2 UN 1020 CHLOROPENTAFLUORO- ETHANE (REFRIGERAN... 2 UN 1021 1-CHLORO-1,2,2,2- TETRAFLUOROETHANE (... 2 UN 1022 CHLOROTRIFLUORO-METHANE (REFRIGERANT ... 2 UN 1023 COAL GAS, COMPRESSED 2 UN 1026 CYANOGEN 2 UN 1027 CYCLOPROPANE 2 UN 1028 DICHLORODIFLUORO-METHANE (REFRIGERANT... 2 UN 1029 DICHLOROFLUORO-METHANE (REFRIGERANT GAS R 21) 2 UN 1030 1,1-DIFLUOROETHANE (REFRIGERANT GAS R 152a) 2 UN 1032 DIMETHYLAMINE, ANHYDROUS 2 UN 1033 DIMETHYL ETHER 2 UN 1035 ETHANE 2 UN 1036 ETHYLAMINE 2 UN 1037 ETHYL CHLORIDE 2 UN 1038 ETHYLENE, REFRIGERATED LIQUID 2 UN 1039 ETHYL METHYL ETHER 2 UN 1040 ETHYLENE OXIDE 2 UN 1040 ETHYLENE OXIDE WITH NITROGEN up to a ... 2 UN 1041 ETHYLENE OXIDE AND CARBON DIOXIDE MIX... 2 UN 1043 FERTILIZER AMMONIATING SOLUTION with ... 2 UN 1044 FIRE EXTINGUISHERS with compressed or... 2 UN 1045 FLUORINE, COMPRESSED 2 UN 1046 HELIUM, COMPRESSED 2 UN 1048 HYDROGEN BROMIDE, ANHYDROUS 2 UN 1049 HYDROGEN, COMPRESSED 2 UN 1050 HYDROGEN CHLORIDE, ANHYDROUS 2 UN 1053 HYDROGEN SULPHIDE 2 UN 1055 ISOBUTYLENE 2 UN 1056 KRYPTON, COMPRESSED 2 UN 1057 LIGHTERS or LIGHTER REFILLS containin... 2 UN 1058 LIQUEFIED GASES, non-flammable, charg... 2 UN 1060 METHYLACETYLENE AND PROPADIENE MIXTUR... 2 UN 1061 METHYLAMINE, ANHYDROUS 2 UN 1062 METHYL BROMIDE with not more than 2 %... 2 UN 1063 METHYL CHLORIDE (REFRIGERANT GAS R 40) 2 UN 1064 METHYL MERCAPTAN 2 UN 1065 NEON, COMPRESSED 2 UN 1066 NITROGEN, COMPRESSED 2 UN 1067 DINITROGEN TETROXIDE (NITROGEN DIOXIDE) 2 UN 1069 NITROSYL CHLORIDE 2 UN 1070 NITROUS OXIDE 2 UN 1071 OIL GAS, COMPRESSED 2 UN 1072 OXYGEN, COMPRESSED 2 UN 1073 OXYGEN, REFRIGERATED LIQUID 2 UN 1075 PETROLEUM GASES, LIQUEFIED 2 UN 1076 PHOSGENE 2 UN 1077 PROPYLENE 2 UN 1078 REFRIGERANT GAS, N.O.S., such as mixt... 2 UN 1079 SULPHUR DIOXIDE 2 UN 1080 SULPHUR HEXAFLUORIDE 2 UN 1081 TETRAFLUOROETHYLENE, STABILIZED 2 UN 1082 TRIFLUOROCHLORO-ETHYLENE, STABILIZED ... 2 UN 1083 TRIMETHYLAMINE, ANHYDROUS 2 UN 1085 VINYL BROMIDE, STABILIZED 2 UN 1086 VINYL CHLORIDE, STABILIZED 2 UN 1087 VINYL METHYL ETHER, STABILIZED 2 UN 1581 CHLOROPICRIN AND METHYL BROMIDE MIXTU... 2 UN 1582 CHLOROPICRIN AND METHYL CHLORIDE MIXTURE 2 UN 1589 CYANOGEN CHLORIDE, STABILIZED 2 UN 1612 HEXAETHYL TETRAPHOSPHATE AND COMPRESS... 2 UN 1660 NITRIC OXIDE, COMPRESSED 2 UN 1741 BORON TRICHLORIDE 2 UN 1749 CHLORINE TRIFLUORIDE 2 UN 1858 HEXAFLUOROPROPYLENE (REFRIGERANT GAS R 1216) 2 UN 1859 SILICON TETRAFLUORIDE 2 UN 1860 VINYL FLUORIDE, STABILIZED 2 UN 1911 DIBORANE 2 UN 1912 METHYL CHLORIDE AND METHYLENE CHLORID... 2 UN 1913 NEON, REFRIGERATED LIQUID 2 UN 1950 AEROSOLS, asphyxiant 2 UN 1950 AEROSOLS, corrosive 2 UN 1950 AEROSOLS, corrosive, oxidizing 2 UN 1950 AEROSOLS, flammable 2 UN 1950 AEROSOLS, flammable, corrosive 2 UN 1950 AEROSOLS, oxidizing 2 UN 1950 AEROSOLS, toxic 2 UN 1950 AEROSOLS, toxic, corrosive 2 UN 1950 AEROSOLS, toxic, flammable 2 UN 1950 AEROSOLS, toxic, flammable, corrosive 2 UN 1950 AEROSOLS, toxic, oxidizing 2 UN 1950 AEROSOLS, toxic, oxidizing, corrosive 2 UN 1951 ARGON, REFRIGERATED LIQUID 2 UN 1952 ETHYLENE OXIDE AND CARBON DIOXIDE MIX... 2 UN 1953 COMPRESSED GAS, TOXIC, FLAMMABLE, N.O.S. 2 UN 1954 COMPRESSED GAS, FLAMMABLE, N.O.S. 2 UN 1955 COMPRESSED GAS, TOXIC, N.O.S. 2 UN 1956 COMPRESSED GAS, N.O.S. 2 UN 1957 DEUTERIUM, COMPRESSED 2 UN 1958 1,2-DICHLORO-1,1,2,2- TETRAFLUOROETHA... 2 UN 1959 1,1-DIFLUOROETHYLENE (REFRIGERANT GAS... 2 UN 1961 ETHANE, REFRIGERATED LIQUID 2 UN 1962 ETHYLENE 2 UN 1963 HELIUM, REFRIGERATED LIQUID 2 UN 1964 HYDROCARBON GAS MIXTURE, COMPRESSED, N.O.S. 2 UN 1965 HYDROCARBON GAS MIXTURE, LIQUEFIED, N... 2 UN 1966 HYDROGEN, REFRIGERATED LIQUID 2 UN 1967 INSECTICIDE GAS, TOXIC, N.O.S. 2 UN 1968 INSECTICIDE GAS, N.O.S. 2 UN 1969 ISOBUTANE 2 UN 1970 KRYPTON, REFRIGERATED LIQUID 2 UN 1971 METHANE, COMPRESSED or NATURAL GAS, C... 2 UN 1972 METHANE, REFRIGERATED LIQUID or NATUR... 2 UN 1973 CHLORODIFLUORO-METHANE AND CHLOROPENT... 2 UN 1974 CHLORODIFLUOROBROMO- METHANE (REFRIGE... 2 UN 1975 NITRIC OXIDE AND DINITROGEN TETROXIDE... 2 UN 1976 OCTAFLUOROCYCLO-BUTANE (REFRIGERANT G... 2 UN 1977 NITROGEN, REFRIGERATED LIQUID 2 UN 1978 PROPANE 2 UN 1982 TETRAFLUOROMETHANE (REFRIGERANT GAS R 14) 2 UN 1983 1-CHLORO-2,2,2- TRIFLUOROETHANE (REFR... 2 UN 1984 TRIFLUOROMETHANE (REFRIGERANT GAS R 23) 2 UN 2034 HYDROGEN AND METHANE MIXTURE, COMPRESSED 2 UN 2035 1,1,1-TRIFLUOROETHANE (REFRIGERANT GA... 2 UN 2036 XENON 2 UN 2037 RECEPTACLES, SMALL, CONTAINING GAS (G... 2 UN 2044 2,2-DIMETHYLPROPANE 2 UN 2073 AMMONIA SOLUTION, relative density le... 2 UN 2186 HYDROGEN CHLORIDE, REFRIGERATED LIQUID 2 UN 2187 CARBON DIOXIDE, REFRIGERATED LIQUID 2 UN 2188 ARSINE 2 UN 2189 DICHLOROSILANE 2 UN 2190 OXYGEN DIFLUORIDE, COMPRESSED 2 UN 2191 SULPHURYL FLUORIDE 2 UN 2192 GERMANE 2 UN 2193 HEXAFLUOROETHANE (REFRIGERANT GAS R 116) 2 UN 2194 SELENIUM HEXAFLUORIDE 2 UN 2195 TELLURIUM HEXAFLUORIDE 2 UN 2196 TUNGSTEN HEXAFLUORIDE 2 UN 2197 HYDROGEN IODIDE, ANHYDROUS 2 UN 2198 PHOSPHORUS PENTAFLUORIDE 2 UN 2199 PHOSPHINE 2 UN 2200 PROPADIENE, STABILIZED 2 UN 2201 NITROUS OXIDE, REFRIGERATED LIQUID 2 UN 2202 HYDROGEN SELENIDE, ANHYDROUS 2 UN 2203 SILANE 2 UN 2204 CARBONYL SULPHIDE 2 UN 2417 CARBONYL FLUORIDE 2 UN 2418 SULPHUR TETRAFLUORIDE 2 UN 2419 BROMOTRIFLUORO-ETHYLENE 2 UN 2420 HEXAFLUOROACETONE 2 UN 2421 NITROGEN TRIOXIDE 2 UN 2422 OCTAFLUOROBUT-2-ENE (REFRIGERANT GAS R 1318) 2 UN 2424 OCTAFLUOROPROPANE (REFRIGERANT GAS R 218) 2 UN 2451 NITROGEN TRIFLUORIDE 2 UN 2452 ETHYLACETYLENE, STABILIZED 2 UN 2453 ETHYL FLUORIDE (REFRIGERANT GAS R 161) 2 UN 2454 METHYL FLUORIDE (REFRIGERANT GAS R 41) 2 UN 2455 METHYL NITRITE 2 UN 2517 1-CHLORO-1,1- DIFLUOROETHANE (REFRIGE... 2 UN 2534 METHYLCHLOROSILANE 2 UN 2548 CHLORINE PENTAFLUORIDE 2 UN 2591 XENON, REFRIGERATED LIQUID 2 UN 2599 CHLOROTRIFLUORO-METHANE AND TRIFLUORO... 2 UN 2601 CYCLOBUTANE 2 UN 2602 DICHLORODIFLUORO-METHANE AND 1,1-DIFL... 2 UN 2676 STIBINE 2 UN 2857 REFRIGERATING MACHINES containing non... 2 UN 2901 BROMINE CHLORIDE 2 UN 3057 TRIFLUOROACETYL CHLORIDE 2 UN 3070 ETHYLENE OXIDE AND DICHLORODIFLUORO- ... 2 UN 3083 PERCHLORYL FLUORIDE 2 UN 3136 TRIFLUOROMETHANE, REFRIGERATED LIQUID 2 UN 3138 ETHYLENE, ACETYLENE AND PROPYLENE MIX... 2 UN 3150 DEVICES, SMALL, HYDROCARBON GAS POWER... 2 UN 3153 PERFLUORO(METHYL VINYL ETHER) 2 UN 3154 PERFLUORO(ETHYL VINYL ETHER) 2 UN 3156 COMPRESSED GAS, OXIDIZING, N.O.S. 2 UN 3157 LIQUEFIED GAS, OXIDIZING, N.O.S. 2 UN 3158 GAS, REFRIGERATED LIQUID, N.O.S. 2 UN 3159 1,1,1,2-TETRAFLUOROETHANE (REFRIGERAN... 2 UN 3160 LIQUEFIED GAS, TOXIC, FLAMMABLE, N.O.S. 2 UN 3161 LIQUEFIED GAS, FLAMMABLE, N.O.S. 2 UN 3162 LIQUEFIED GAS, TOXIC, N.O.S. 2 UN 3163 LIQUEFIED GAS, N.O.S. 2 UN 3164 ARTICLES, PRESSURIZED, PNEUMATIC or H... 2 UN 3167 GAS SAMPLE, NON- PRESSURIZED, FLAMMAB... 2 UN 3168 GAS SAMPLE, NON- PRESSURIZED, TOXIC, ... 2 UN 3169 GAS SAMPLE, NON- PRESSURIZED, TOXIC, ... 2 UN 3220 PENTAFLUOROETHANE (REFRIGERANT GAS R 125) 2 UN 3252 DIFLUOROMETHANE (REFRIGERANT GAS R 32) 2 UN 3296 HEPTAFLUOROPROPANE (REFRIGERANT GAS R 227) 2 UN 3297 ETHYLENE OXIDE AND CHLOROTETRAFLUORO-... 2 UN 3298 ETHYLENE OXIDE AND PENTAFLUOROETHANE ... 2 UN 3299 ETHYLENE OXIDE AND TETRAFLUOROETHANE ... 2 UN 3300 ETHYLENE OXIDE AND CARBON DIOXIDE MIX... 2 UN 3303 COMPRESSED GAS, TOXIC, OXIDIZING, N.O.S. 2 UN 3304 COMPRESSED GAS, TOXIC, CORROSIVE, N.O.S. 2 UN 3305 COMPRESSED GAS, TOXIC, FLAMMABLE, COR... 2 UN 3306 COMPRESSED GAS, TOXIC, OXIDIZING, COR... 2 UN 3307 LIQUEFIED GAS, TOXIC, OXIDIZING, N.O.S. 2 UN 3308 LIQUEFIED GAS, TOXIC, CORROSIVE, N.O.S. 2 UN 3309 LIQUEFIED GAS, TOXIC, FLAMMABLE, CORR... 2 UN 3310 LIQUEFIED GAS, TOXIC, OXIDIZING, CORR... 2 UN 3311 GAS, REFRIGERATED LIQUID, OXIDIZING, N.O.S. 2 UN 3312 GAS, REFRIGERATED LIQUID, FLAMMABLE, N.O.S. 2 UN 3318 AMMONIA SOLUTION, relative density le... 2 UN 3337 REFRIGERANT GAS R 404A (Pentafluoroet... 2 UN 3338 REFRIGERANT GAS R 407A (Difluorometha... 2 UN 3339 REFRIGERANT GAS R 407B (Difluorometha... 2 UN 3340 REFRIGERANT GAS R 407C (Difluorometha... 2 UN 3354 INSECTICIDE GAS, FLAMMABLE, N.O.S. 2 UN 3355 INSECTICIDE GAS, TOXIC, FLAMMABLE, N.O.S. 2 UN 3358 REFRIGERATING MACHINES containing fla... 2 UN 3374 ACETYLENE, SOLVENT FREE 2 UN 3468 HYDROGEN IN A METAL HYDRIDE STORAGE S... 2 UN 3478 FUEL CELL CARTRIDGES or FUEL CELL CAR... 2 UN 3479 FUEL CELL CARTRIDGES or FUEL CELL CAR... 2 UN 3500 CHEMICAL UNDER PRESSURE, N.O.S. 2 UN 3501 CHEMICAL UNDER PRESSURE, FLAMMABLE, N.O.S. 2 UN 3502 CHEMICAL UNDER PRESSURE, TOXIC, N.O.S. 2 UN 3503 CHEMICAL UNDER PRESSURE, CORROSIVE, N.O.S. 2 UN 3504 CHEMICAL UNDER PRESSURE, FLAMMABLE, T... 2 UN 3505 CHEMICAL UNDER PRESSURE, FLAMMABLE, C... 2 UN 3510 ADSORBED GAS, FLAMMABLE, N.O.S. 2 UN 3511 ADSORBED GAS, N.O.S. 2 UN 3512 ADSORBED GAS, TOXIC, N.O.S. 2 UN 3513 ADSORBED GAS, OXIDIZING, N.O.S. 2 UN 3514 ADSORBED GAS, TOXIC, FLAMMABLE, N.O.S. 2 UN 3515 ADSORBED GAS, TOXIC, OXIDIZING, N.O.S. 2 UN 3516 ADSORBED GAS, TOXIC, CORROSIVE, N.O.S. 2 UN 3517 ADSORBED GAS, TOXIC, FLAMMABLE, CORRO... 2 UN 3518 ADSORBED GAS, TOXIC, OXIDIZING, CORRO... 2 UN 3519 BORON TRIFLUORIDE, ADSORBED 2 UN 3520 CHLORINE, ADSORBED 2 UN 3521 SILICON TETRAFLUORIDE, ADSORBED 2 UN 3522 ARSINE, ADSORBED 2 UN 3523 GERMANE, ADSORBED 2 UN 3524 PHOSPHORUS PENTAFLUORIDE, ADSORBED 2 UN 3525 PHOSPHINE, ADSORBED 2 UN 3526 HYDROGEN SELENIDE, ADSORBED 2 UN 3529 ENGINE, INTERNAL COMBUSTION, FLAMMABL... 2 UN 3537 ARTICLES CONTAINING FLAMMABLE GAS, N.O.S. 2 UN 3538 ARTICLES CONTAINING NON- FLAMMABLE, N... 2 UN 3539 ARTICLES CONTAINING TOXIC GAS, N.O.S. 2 UN 3553 DISILANE 2