Name: UN 2073 — AMMONIA SOLUTION, relative density less than 0.880 at 15 °C in water, with more than 35 % but not more than 50 % ammonia
Creator: FreightUtils
License: https://creativecommons.org/licenses/by/4.0/

Hazard Class

Gases

Classification Code

Packing Group

N/A

Not applicable

Hazard ID No.

Kemler code

Transport Category

For 1,000-point rule

Tunnel Code

(E)

Tunnel restriction

Hazard Labels Required

Label 2.2

These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.

Quantity Limits & Transport

Limited Quantity

120 ml

Max per inner package for LQ relief

Excepted Quantity

EQ code for excepted quantity relief

Transport Category

0=highest, 4=lowest restriction

Tunnel Restriction

(E)

Code governing tunnel passage

Check if UN 2073 qualifies for 1.1.3.6 exemption

Calculate small load points and check exemption thresholds

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Other Gases (Class 2)

AIR, REFRIGERATED LIQUID

Use this data programmatically

GET /api/adr?un=2073

View API Docs →

📅Data: UNECE ADR 2025, licensed from Labeline.com. Last verified April 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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