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

Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1 MPa (10 bar) at 50 degrees C

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 1040
Hazard class
2.3
Packing group
—
ERG guide
ERG 119P
Special provisions
SP 4, SP 342, SP T50, SP TP20
Source
49 CFR §172 (15 June 2026)

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Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1 MPa (10 bar) at 50 degrees C


Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C2H4 or H2C=CH2. It is a colourless, flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene (a hydrocarbon with carbon–carbon double bonds). Ethylene is widely used in the chemical industry, and its worldwide production (over 225 million tonnes in 2022) exceeds that of any other organic compound Wikipedia

Substance Data

Source: PubChem (HSDB, 22.10.2026)

CAS-Number

75-21-8

Flash Point

-29 ° C

Boiling Point

10.6 ° C

Emergency Response Guide No. 119P

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

2.3
Poisonous gas

(4) Identification number Help

UN 1040

(5) Packing Group Help

—

(6) Labels Help

Poisonous gas (2.3) Flammable gases (2.1)

(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.
4
342
T50
TP20

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

(8A) ExceptionsNone
(8B) Non-bulk323see 49 CFR §173.323
(8C) Bulk323see 49 CFR §173.323

(9) Quantity Limits Help

(9A) Passenger aircraft/railForbidden
(9B) Cargo aircraft onlyForbidden

(10) Vessel stowage Help

(10A) Location
(10B) Other

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / IDProper shipping nameHazard class
UN 3138Ethylene, acetylene and propylene in mixture, refrigerated liquid with at least 71.5 percent ethylene with not more than 22.5 percent acetylene and not more than 6 percent propylene2.1
UN 0072Cyclotrimethylenetrinitramine, wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by mass1.1D
UN 0226Cyclotetramethylenetetranitramine, wetted or HMX, wetted or Octogen, wetted with not less than 15 percent water, by mass1.1D
UN 1041Ethylene oxide and carbon dioxide mixtures with more than 9 percent but not more than 87 percent ethylene oxide2.1
UN 0075Diethyleneglycol dinitrate, desensitized with not less than 25 percent non-volatile water-insoluble phlegmatizer, by mass1.1D
UN 1952Ethylene oxide and carbon dioxide mixtures with not more than 9 percent ethylene oxide2.2
UN 0483Cyclotrimethylenetrinitramine, desensitized or Cyclonite, desensitized or Hexogen, desensitized or RDX, desensitized1.1D
UN 3300Ethylene oxide and carbon dioxide mixture with more than 87 percent ethylene oxide2.3
UN 3297Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide2.2
UN 3070Ethylene oxide and dichlorodifluoromethane mixture, with not more than 12.5 percent ethylene oxide2.2
UN 3298Ethylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide2.2
UN 2983Ethylene oxide and propylene oxide mixtures, with not more than 30 percent ethylene oxide3
UN 3299Ethylene oxide and tetrafluoroethane mixture with not more than 5.6 percent ethylene oxide2.2
UN 0484Cyclotetramethylenetetranitramine, desensitized or Octogen, desensitized or HMX, desensitized1.1D
UN 1647Methyl bromide and ethylene dibromide mixtures, liquid6.1