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BENZYL CHLOROFORMATEICSC: 0990
Benzylcarbonyl chloride
Carbobenzoxy chloride
Formic acid, chlorobenzyl ester
April 2004
CAS #: 501-53-1
UN #: 1739
EC Number: 207-925-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames. NO contact with water.    Use dry powder, foam, carbon dioxide.   

 AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Shortness of breath. Sore throat. 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 Skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Watering of the eyes. Severe deep burns.  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 Burning sensation. Abdominal pain. Shock or collapse.  Do not eat, drink, or smoke during work.  Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: complete protective clothing including self-contained breathing apparatus. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 8; UN Pack Group: I 

STORAGE
Separated from food and feedstuffs. Dry. Well closed. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
BENZYL CHLOROFORMATE ICSC: 0990
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
OILY COLOURLESS-TO-YELLOW LIQUID WITH PUNGENT ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces phosgene. Decomposes on contact with water. This produces toxic and corrosive fumes including hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water or moist air. 

Formula: C8H7ClO2
Molecular mass: 170.6
Decomposes at >100°C
Melting point: 0°C
Relative density (water = 1): 1.20
Solubility in water: reaction
Vapour pressure, kPa at 85-87°C: 0.009
Relative vapour density (air = 1): 1
Flash point: 80.0°C c.c. 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Lachrymation. The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly on spraying. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
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 is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: C, N; R: 34-50/53; S: (1/2)-26-45-60-61 

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    See Also:
       Toxicological Abbreviations