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BORON TRIFLUORIDE
(cylinder)
ICSC: 0231
Peer-Review Status: 24.09.1993 Validated
Trifluoroborane 
CAS #: 7637-07-2 RTECS #: ED2275000
UN #: 1008
EC #: 005-001-00-X
EINECS #: 231-569-5
    Formula: BF3
Molecular mass: 67.8

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION     In case of fire: keep cylinder cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Cough. Laboured breathing.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Burning sensation. Pain. ON CONTACT WITH LIQUID: FROSTBITE.  Protective gloves. Cold-insulating gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain. Blurred vision.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. Remove fumes with fine water spray.   
EC Classification
Symbol: T+, C; R: 14-26-35; S: (1/2)-9-26-28-36/37/39-45 
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 8 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20G1TC.  Separated from alkali metals, alkaline earth metals, alkyl nitrates and lime. Cool. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS COMPRESSED GAS WITH PUNGENT ODOUR. FORMS WHITE FUMES IN MOIST AIR. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
The substance polymerizes unsaturated compounds. Decomposes on contact with water or moisture. This produces toxic and corrosive fumes including hydrogen fluoride (see ICSC 0283), fluoroboric acid and boric acid. Reacts violently with metals such as sodium, potassium and calcium and alkyl nitrates. Attacks many metals in the presence of water. 

Occupational exposure limits
TLV: 1ppm (ceiling value); (ACGIH 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of short-term exposure
Corrosive. Lachrymation. The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of of this gas may cause lung oedema. See Notes. Rapid evaporation of the liquid may cause frostbite. 

Effects of long-term or repeated exposure
The substance may have effects on the kidneys. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -100°C
Melting point: -127°C
Solubility in water: reaction
See Notes.
Relative vapour density (air = 1): 2.4  
This substance may be hazardous to the environment. Special attention should be given to aquatic organisms. 

NOTES
Boron trifluoride is soluble in cold water, 332 g/100 ml at 0°C.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Card has been partly updated in April 2005.
See sections Occupational Exposure Limits, EU classification, Emergency Response. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations