METHANE (compressed gas)

UN Number: 1971

Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List


UN number 1971

Physical chemical data

Physical State (20°C) Gas
Density (kg/m3)
0.774 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 16.04
Density of gas (kg/m3) 0.774
Boiling Point (°C) -261.3
Melting Point (°C) -182
Vapour Pressure (Pa)
25000000 [Pa] at a temperature of 20°C
Ignition Temperature (°C) 595
Upper explosivity limit (UEL) (volume %) 15

Behaviour at sea

Additional data

Colour colourless
Odour weak odour

Transportation data

Transport mode Gas,Packaged
Cargo group 31
State liq.compr.gas
Temperature (°C) < -162�
Pressure (Pa) under pressure
Family name paraffins
IMO class 2(2.1)

Reactivity data

Water No
Static electricity Yes

GESAMP Hazard profile

Human toxicity threshold

TEEL-1 (mg/m3) 3000 ppm
TEEL-2 (mg/m3) 5000 ppm
TEEL-3 (mg/m3) 200000 ppm


Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 115

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 2-02


Emergency procedures


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

Spillage on deck

Stop leak if practicable.

Spillage under deck

Provide adequate ventilation. Stop leak if practicable.

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

Spray nozzles.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2023-01-16T14:31:57+00:00

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