UN 2073

UN 2073 is the transport identification number used for Ammonia and Ammonium Hydroxide in our database. It appears in Section 14 of the SDS, on shipping papers and on hazmat placards and labels.

Proper shipping name

• UN 2073; Ammonia solutions, relative density less than 0.880 at 15 °C in water, with more than 35% but not more than 50% ammonia
• UN 2073; Ammonia solutions density (specific gravity) less than 0.880 at 15 °C in water, with more than 35% but not more than 50% ammonia.

DOT hazard classification

• Ammonia, anhydrous (I)
• Marine pollutant
• Ammonia, anhydrous

Emergency Response Guidebook

• 2073 125

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