ICSC 0990 - BENZYL CHLOROFORMATE

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BENZYL CHLOROFORMATE

ICSC: 0990
_{April 2004}

Benzylcarbonyl chloride
Carbobenzoxy chloride
Formic acid, chlorobenzyl ester

CAS No: 501-53-1
RTECS No: LQ5860000
UN No: 1739
EC No: 607-064-00-4

C₈H₇ClO₂
Molecular mass: 170.6

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	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.	C Symbol N Symbol R: 34-50/53 S: (1/2-)26-45-60-61 UN Hazard Class: 8 UN Pack Group: I	Do not transport with food and feedstuffs. Marine pollutant.

EMERGENCY RESPONSE	STORAGE
Transport Emergency Card: TEC (R)-80GC9-I	Separated from food and feedstuffs. Dry. Well closed.

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	ENVIRONMENTAL DATA
Boiling point (decomposes): above 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.

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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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Updated by AS. Approved by EC. Last update: 05.07.2004