ETHYLENE OXIDE (< 0.2% nitrogen)

UN Number: 1040 - CAS Number: 75-21-8

Also known as: ANPROLENE (T), DIHYDROOXIRANE, DIMETHYLENE OXIDE

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	1040
CAS number	75-21-8

Physical chemical data

Physical State (20°C)

Gas

Density (kg/m3)

1.935 [Kg/m³] at a temperature of 20°C

Molar mass (g/mol)

44.05

Density of gas (kg/m3)

1.935

Boiling Point (°C)

10.8

Melting Point (°C)

-112

Vapour Pressure (Pa)

150000 [Pa] at a temperature of 20°C

Ignition Temperature (°C)

440

Flash Point (°C)

-18

Upper explosivity limit (UEL) (volume %)

100

Behaviour at sea

Additional data

Colour	colourless
Odour	sweet odour
Standard behavior classification	GD

Transportation data

Transport mode	Gas,Packaged
Ship type	1G
State	liq.compr.gas
Temperature (°C)	ambient
Pressure (Pa)	under pressure
IMO class	2(2.3)

Reactivity data

Water	Yes
Acid(s)	Yes
Base(s)	Yes
Metal(s) and alloys	No
Static electricity	Yes
Oxidizing agents	No
Reducing agents	No
Combustibles	No
Organic substance	No

GESAMP Hazard profile

Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	1 - Slight
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	3 - Moderately high
Eye irritation/corrosivity (D2)	3 - Severely irritating, with irreversible corneal injury
Interference with coastal amenities (E2)	GD - Gas/Dissolver
Effects on wildlife and bottom habitats (E3)	3 - Is highly acutely toxic; and/or is severely irritant or corrosive to skin or eyes; and/or is carcinogenic, mutagenic or reprotoxic; and/or is a floater or persistent floater with associated health effects

Human toxicity threshold

IDHL	800
ERPG-2 (ppm)	50
ERPG-3 (ppm)	500

Ecotoxicity

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 119P

See the guide or download the emergency response guidebook

At sea emergency guide

Emergency schedule: 2-06

LIQUEFIED GASES, FLAMMABLE; TOXIC AND/OR CORROSIVE.

Emergency procedures

Action

Avoid all sources of ignition (e.g. naked lights, unprotected light bulbs, electric handtools).

Spillage on deck

Stop leak if practicable. Let spilt liquid evaporate, but keep clear.

Spillage under deck

Provide adequate ventilation. Stop leak if practicable. Let spilt liquid evaporate, but keep clear.

Fire on deck

Use water spray, foam or dry chemical from as far away as practicable.
Keep adjacent receptacles cool with copious quantities of water. Remove undamaged cooled receptacles to a safe place.

Fire under deck

Batten down; use ship's fixed fire-fighting installation. Otherwise adopt action as for "On deck".

Special equipment to be carried

Protective clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.
Spray nozzles.

Decision trees

No decision trees available

No additional data