IPCS INCHEM Home
BENZOYL CHLORIDE
ICSC: 1015
Peer-Review Status: 13.04.2000 Validated
Benzenecarbonyl chloride
Benzoic acid chloride
alpha-Chlorobenzaldehyde 
CAS #: 98-88-4 RTECS #: DM6600000
UN #: 1736
EC #: 607-012-00-0
EINECS #: 202-710-8
    Formula: C7H5ClO / C6H5COCl
Molecular mass: 140.57

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames. NO contact with incompatible substances. See Chemical Dangers. NO contact with hot surfaces.  Use alcohol-resistant foam, powder, carbon dioxide. NO water. 
EXPLOSION Above 72°C explosive vapour/air mixtures may be formed.  Above 72°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS! STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Cough. Shortness of breath. Sore throat. Laboured breathing. Symptoms may be delayed. See Notes.  Avoid inhalation of dust and mist. Use closed system or ventilation.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes. 
Skin Redness. Skin burns. Burning sensation. Pain. Blisters.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . Wear protective gloves when administering first aid. 
Eyes Redness. Pain. 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. Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Rest. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.  Airtight.
Do not transport with food and feedstuffs. 
EC Classification
Symbol: C; R: 34; S: (1/2)-26-45 
UN Classification
UN Hazard Class: 8; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC3-II+III.
NFPA Code: H3; F2; R1; W. 
See Chemical Dangers. Separated from food and feedstuffs and incompatible materials. Dry. Well closed. 

IMPORTANT DATA
Physical State; Appearance
FUMING COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces highly toxic and corrosive gases (phosgene and hydrogen chloride). Decomposes rapidly on heating and on contact with alkalis, alcohols, amines and dimethyl sulphoxide (see ICSC 0459). This generates fire and explosion hazard. Reacts violently with strong oxidants. Reacts with water and steam. This produces heat and corrosive fumes (hydrogen chloride - see ICSC 0163). Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). Contact with metal salts generates flammable/explosive gas (hydrogen - see ICSC 0001). 

Occupational exposure limits
TLV: 0.5ppm (ceiling value); A4 (not classifiable as a human carcinogen); (ACGIH 2008).
MAK: Carcinogen category: 3B; (DFG 2008). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. 

Effects of short-term exposure
Lachrymation. The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the vapour or aerosol may cause lung oedema. See Notes. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 197.2°C
Melting point: -1°C
Relative density (water = 1): 1.21
Solubility in water: reaction
Vapour pressure, Pa at 20°C: 50
Relative vapour density (air = 1): 4.88
Flash point: 72°C c.c.
Auto-ignition temperature: 197.2°C
Explosive limits, vol% in air: 2.5-27 
The substance is harmful to aquatic organisms. 

NOTES
Reacts violently with fire extinguishing agents such as water.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
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, Emergency Response.
Card has been partially updated in November 2008: see Occupational Exposure Limits. 

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
       Benzoyl Chloride  (IARC Summary & Evaluation, Supplement7, 1987)
       Benzoyl Chloride (IARC Summary & Evaluation, Volume 29, 1982)