URANIUM HEXAFLUORIDE

UN Number: 2977

Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 2977

Physical chemical data

Physical State (20°C) Liquid
Molar mass (g/mol) 352
Boiling Point (°C) 56
Vapour Pressure (Pa)
14200 [Pa] at a temperature of 20°C

Behaviour at sea

Additional data

Odour mild odour

Transportation data

State liquid
Temperature (°C) ambient
Pressure (Pa) ambient

Reactivity data

GESAMP Hazard profile

Human toxicity threshold

ERPG-1 (ppm) 5 mg
ERPG-2 (ppm) 15 mg
ERPG-3 (ppm) 30 mg
10 min 30 min 60 min 4 hrs 8 hrs
AEGL-1 (ppm) 3.6 3.6 3.6
AEGL-2 (ppm) 28 19 9.6 2.4 1.2
AEGL-3 (ppm) 216 72 36 4.5

Ecotoxicity

Incident reports

Incident reports

Year Vessel Location Cargo type
1984 Mont Louis Off Belgian Coast Package
Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 166

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 7-04

RADIOACTIVE MATERIALS, URANIUM HEXAFLUORIDE, FISSILE, FISSILE EXCEPTED or NON-FISSILE.

UN No. 2977
UN No. 2978

Emergency procedures

Action

Spillage will be corrosive.

Spillage on deck

Wash overboard with copious quantities of water from as far away as possible. Do not direct water jets onto leak area. Do not allow water inside receptacles.
Seek expert advice.

Spillage under deck

Collect spillage for safe disposal.

Fire on deck

If possible remove receptacles likely to be involved or keep them cool with copious quantities of water. Water spray may be used to reduce vapours.
Seek expert advice.

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.

Remarks by UN no.

Remarks:

POSSIBLE RESTOWAGE OF FISSILE PACKAGES.

Check transport documents, which will indicate which packages are involved. If packages are restowed the following procedures should be followed:

1- If labels are legible, restow in groups of up to 50 transport indices with not less
than 6m separation between groups. Other neutral cargo may be stowed
between groups.

2- If labels are not legible, stow packages singly at not less than 6m separation.
Other neutral cargo may be stowed between packages.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:03:02+00:00