HazMat Tool — substance information Reference only — not a shipping paper, placard mandate, or CVI record.

Carbon dioxide

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 1013
Hazard class
2.2
Packing group
(multiple — see tabs)
ERG guide
ERG 120
Special provisions
Source
49 CFR §172 (15 June 2026)

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Carbon dioxide


Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in a gas state at room temperature and at normally-encountered concentrations it is odorless. As the source of carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth Wikipedia

Substance Data

Source: PubChem (HSDB, 09.12.2019)

CAS-Number

124-38-9

Flash Point

Boiling Point


Emergency Response Guide No. 120

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

2.2
Non-toxic, non-flammable gases

(4) Identification number Help

UN 1013

(5) Packing Group Help

(6) Labels Help

Non-toxic, non-flammable gases (2.2)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions306see 49 CFR §173.306
(8B) Non-bulk302, 304see 49 CFR §173.302, 304
(8C) Bulk302, 314, 315see 49 CFR §173.302, 314, 315

(9) Quantity Limits Help

(9A) Passenger aircraft/rail75 kg
(9B) Cargo aircraft only150 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

Mine rescue equipment containing carbon dioxide,