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ETHYL CHLOROFORMATE
ICSC: 1025
Peer-Review Status: 10.04.2000 Validated
Ethyl chlorocarbonate
Chloroformic acid ethyl ester
Carbonochloridic acid ethyl ester
Ethoxycarbonyl chloride 
CAS #: 541-41-3 RTECS #: LQ6125000
UN #: 1182
EC #: 607-020-00-4
EINECS #: 208-778-5
    Formula: C3H5ClO2 / ClCOOC2H5
Molecular mass: 108.53

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking. NO contact with strong oxidizing agents.  Use alcohol-resistant foam, powder, carbon dioxide. NO water. 
EXPLOSION Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  In case of fire: keep cylinder cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.  Use closed system or ventilation.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes. 
Skin Skin burns. Blisters. Pain. Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
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 Abdominal pain. Burning sensation. Shock or collapse.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.  Airtight.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
EC Classification
Symbol: F, T+; R: 11-22-26-34; S: (1/2)-9-16-26-28-33-36/37/39-45 
UN Classification
UN Hazard Class: 6.1; UN Subsidiary Risks: 3 and 8; UN Pack Group: I 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G60.
NFPA Code: H3; F3; R1. 
Fireproof. Separated from strong oxidants, food and feedstuffs and incompatible materials. See Chemical Dangers. Cool. Dry. Well closed. 

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

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes on heating. This produces toxic and irritating fumes including hydrogen chloride and phosgene. Reacts with water and steam. This produces toxic and corrosive hydrogen chloride. Reacts violently with strong oxidants. This generates fire and explosion hazard. Reacts with amines and bases. Attacks many metals in the presence of moisture. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: Carcinogen category: 3B; (DFG 2008). 

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

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. 

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 95°C
Melting point: -80.6°C
Relative density (water = 1): 1.1
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 5.5
Relative vapour density (air = 1): 3.7
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.15
Flash point: 16°C c.c.
Auto-ignition temperature: 500°C
Explosive limits, vol% in air: 3.2-27.5 (thermal decomposition >250°C) 
 

NOTES
Health effects of exposure to the substance have not been investigated adequately.
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 spray, by a doctor or a person authorized by him/her, should be considered.
Environmental effects from the substance have not been investigated adequately.
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