HYDROGEN SULPHIDE

UN Number: 1053

Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 1053

Physical chemical data

Physical State (20°C) Gas
Density (kg/m3)
1.548 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 34.08
Density of gas (kg/m3) 1.548
Boiling Point (°C) -60.4
Melting Point (°C) -86
Vapour Pressure (Pa)
1924700 [Pa] at a temperature of 20°C
Ignition Temperature (°C) 260
Lower explosivity limit (LEL) (volume %) 4.3
Upper explosivity limit (UEL) (volume %) 45

Behaviour at sea

Additional data

Colour colourless
Odour rotten egg odour
Standard behavior classification GD, G

Transportation data

State liq.compr.gas
Temperature (°C) ambient
Pressure (Pa) under pressure
IMO class 2(2.3)

Reactivity data

GESAMP Hazard profile

Human toxicity threshold

IDHL 300
TLV-TWA 10
ERPG-1 (ppm) 0.1
ERPG-2 (ppm) 30
ERPG-3 (ppm) 100

Ecotoxicity

Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 117

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 2-05

LIQUEFIED GASES, FLAMMABLE; HIGHLY TOXIC; STOWAGE "ON DECK ONLY".

Emergency procedures

Action

Avoid all sources of ignition (e.g. naked lights, unprotected light bulbs, electric handtools).
Turn ship off-wind.

Spillage on deck

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

Spillage under deck

Not applicable.

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

Not applicable.

Special equipment to be carried

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

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:35+00:00