UN 1977

UN 1977 is the transport identification number used for Nitrogen in our database. It appears in Section 14 of the SDS, on shipping papers and on hazmat placards and labels.

Proper shipping name

• UN 1977; Nitrogen, refrigerated liquid, cryogenic liquid

DOT hazard classification

• Nitrogen, compressed
• UN1066
• Div 2.2 Non-flammable compressed gas (49 eCFR § 173.115)

Emergency Response Guidebook

• 1977 120

Transport data from NOAA CAMEO Chemicals, HSDB and other sources via PubChem. Always confirm against 49 CFR 172.101 and the current ERG.