URANIUM HEXAFLUORIDE 1250
March 1995
Uranium fluoride
CAS No: 7783-81-5
UF6
RTECS No: YR4720000
Molecular mass: 352.0
UN No: 2978
EC No: 092-002-00-3
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Not combustible. Gives off irritating In case of fire in the surroundings:
FIRE
or toxic fumes (or gases) in a fire. powder, carbon dioxide. NO water.
EXPLOSION
EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A
DOCTOR!
Corrosive. Burning sensation. Avoid inhalation of fine dust and Fresh air, rest. Artificial respiration
Inhalation
Cough. Shortness of breath. mist. Closed system and ventilation. may be needed. Refer for medical
attention.
Corrosive. Skin burns. Pain. Protective gloves. Protective First rinse with plenty of water, then
Skin
clothing. remove contaminated clothes and
rinse again. Refer for medical
attention. Wear protective gloves
when administering first aid.
Corrosive. Pain. Severe deep Face shield or eye protection in First rinse with plenty of water for
Eyes
burns. combination with breathing several minutes (remove contact
protection if powder. lenses if easily possible), then take
to a doctor.
Corrosive. Abdominal cramps. Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Ingestion
Burning sensation. Shock or work. Wash hands before eating. vomiting. Give plenty of water to
collapse. drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Sweep T+ Symbol Unbreakable packaging; put
spilled substance into sealable containers, then N Symbol breakable packaging into closed
remove to safe place. Personal protection: complete R: 26/28-33-51/53 unbreakable container. Do not
protective clothing including self-contained breathing S: (1/2-)20/21-45-61 transport with food and feedstuffs.
apparatus. Note: A
UN Hazard Class: 7
UN Subsidiary Risks: 8
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-70Gd Separated from aromatic compounds, ethanol, food and feedstuffs. Dry.
Well closed. Keep in a well-ventilated room.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2005
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1250 URANIUM HEXAFLUORIDE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS TO WHITE DELIQUESCENT CRYSTALS. The substance can be absorbed into the body by inhalation and
by ingestion.
Chemical dangers
Inhalation risk
The substance decomposes on heating producing toxic fumes of
hydrogen fluoride (see ICSC 0283). Reacts with aromatic A harmful contamination of the air can be reached rather quickly
compounds, such as benzene, toluene and xylene. Reacts on evaporation of this substance at 20/C.
violently with water and ethanol. Attacks many metals forming
flammable/explosive gas (hydrogen - see ICSC 0001). Attacks Effects of short-term exposure
plastic, rubber and coatings. Corrosive. The substance is corrosive to the eyes, the skin and
the respiratory tract. The substance may cause effects on the
Occupational exposure limits kidneys, resulting in kidney impairment and tissue lesions.
TLV: (as U) 0.2 mg/m3 as TWA; 0.6 mg/m3 as STEL; A1 Exposure at low level may result in death.
(confirmed human carcinogen); (ACGIH 2004).
PHYSICAL PROPERTIES
Boiling point: 56/C Solubility in water, g/100 ml at 20/C: reaction
Relative density (water = 1): 5.09 Vapour pressure, kPa at 20/C: 14.2
ENVIRONMENTAL DATA
NOTES
Do NOT take working clothes home.
Shipping name: UN 2978: Uranium hexafluoride (low specific activity); UN 2977: Uranium hexafluoride, fissile (containing more than
1% (235) uranium).
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2005
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