INTOX Home Page
BENZYL CHLOROFORMATE ICSC: 0990
Date of Peer Review: April 2004

Benzylcarbonyl chloride
Carbobenzoxy chloride
Formic acid, chlorobenzyl ester
CAS # 501-53-1 C8H7ClO2
RTECS # LQ5860000 Molecular mass: 170.6
UN # 1739
EC # 607-064-00-4
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames. NO contact with water.
Dry powder, foam, carbon dioxide.
EXPLOSION


EXPOSURE
AVOID ALL CONTACT!

Inhalation Cough. Shortness of breath. Sore throat. Laboured breathing.
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 Causes watering of the eyes. Severe deep burns.
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 take to a doctor.
Ingestion Burning sensation. Abdominal pain. Shock or collapse.
Do not eat, drink, or smoke during work.
Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking liquid in sealable containers. Carefully collect remainder, then remove to safe place. Personal protection: complete protective clothing including self-contained breathing apparatus.
Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
Symbol: C, N
R: 34-50/53
S: (1/2-)-26-45-60-61
UN Classification
UN Hazard Class: 8
UN Pack Group: I
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-80GC9-I
Separated from food and feedstuffs. Dry. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
BENZYL CHLOROFORMATE ICSC: 0990
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
OILY COLOURLESS TO YELLOW LIQUID, WITH PUNGENT ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating producing phosgene, or on contact with water producing toxic and corrosive fumes including hydrogen chloride. Attacks many metals in the presence of water or moist air.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly on spraying.

EFFECTS OF SHORT-TERM EXPOSURE:
Lachrymation. The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated.

PHYSICAL PROPERTIES
Boiling point (decomposes): above 100C
Melting point: 0C
Relative density (water = 1): 1.20
Solubility in water: reaction
Vapour pressure, kPa at 85-87C: 0.009
Relative vapour density (air = 1): 1
Flash point: 80.0C c.c.
ENVIRONMENTAL DATA

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


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999