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PHOSGENE
(cylinder)
ICSC: 0007
Peer-Review Status: 04.10.2013 Validated
Carbonyl chloride
Chloroformyl chloride 
CAS #: 75-44-5 RTECS #: SY5600000
UN #: 1076
EC #: 006-002-00-8
EINECS #: 200-870-3
    Formula: COCl2
Molecular mass: 98.9

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION     In case of fire: keep cylinder cool by spraying with water. NO direct contact with water. Combat fire from a sheltered position. 
 
EXPOSURE   AVOID ALL CONTACT!  FIRST AID: USE PERSONAL PROTECTION. IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Sore throat. Chest tightness. Shortness of breath. Nausea. Vomiting. Symptoms may be delayed. See Notes.  Use closed system or ventilation.  Fresh air, rest. Half-upright position. Administration of oxygen may be needed. Refer immediately for medical attention. 
Skin Redness. ON CONTACT WITH LIQUID: FROSTBITE.  Cold-insulating gloves. Protective clothing.  ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention. 
Eyes Redness. Watering of the eyes. ON CONTACT WITH LIQUID: FROSTBITE.  Wear face shield or eye protection in combination with breathing protection.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion      

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Shut off cylinder if possible. Remove gas with fine water spray. Isolate the area until the gas has dispersed.   
EC Classification
Symbol: T+; R: 26-34; S: (1/2)-9-26-36/37/39-45; Note: U 
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 8 
GHS Classification
Signal: Danger
Contains gas under pressure; may explode if heated
Fatal if inhaled
Causes serious eye irritation
May cause respiratory irritation
Causes damage to lungs
Causes damage to the lungs through prolonged or repeated exposure 
cylinder;gasskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H4; F0; R1.  Fireproof if in building. Isolated from work area. Separated from incompatible materials. See Chemical Dangers. Cool. Dry. Ventilation along the floor. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
Decomposes above 300°C . Decomposes on contact with water or moisture. This produces corrosive hydrogen chloride (see ICSC 0163). Reacts violently with ethanol, strong oxidants, ammonia, amines and aluminium. Attacks many metals in the presence of water. 

Occupational exposure limits
TLV: 0.1ppm as TWA; (ACGIH 2013).
EU OEL ( selected): 0.02 ppm, 0.08 mg/m³ as TWA; 0.1 ppm, 0.4 mg/m³ as STEL;.
EU OEL ( selected): 0.02 ppm, 0.08 mg/m³ as TWA; 0.1 ppm, 0.4 mg/m³ as STEL;.
EU OEL ( selected): 0.1 ppm, 0.4 mg/m³ as TWA; 0.5 ppm, 2 mg/m³ as STEL; SCOEL recommendation available. 

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

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of short-term exposure
Rapid evaporation of the liquid may cause frostbite. The substance is irritating to the eyes and respiratory tract. Inhalation of the gas may cause lung oedema and chemical pneumonitis. The effects may be delayed. Medical observation is indicated. See Notes. Exposure at high levels could cause death. 

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolongated exposure. This may result in impaired functions and decreased resistance to infection. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 8°C
Melting point: -128°C
Relative density (water = 1): 1.4
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 161.6
Relative vapour density (air = 1): 3.4  
 

NOTES
A serious intoxication may develop even without experiencing symptoms of irritation or detecting the characteristic odour (grass or hay).
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.
Do NOT spray water on a leaking cylinder (to prevent corrosion of the cylinder).
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
The information in this ICSC would also apply to phosgene generated by chemical reactions or by decomposition of organic compounds containing chlorine. 

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
       Phosgene (EHC 193, 1997)
       Phosgene (HSG 106, 1998)
       Phosgene (PIM 419)