ICSC 0007 - PHOSGENE

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PHOSGENE

ICSC: 0007
_{August 2002}

Carbonyl chloride
Chloroformyl chloride

CAS No: 75-44-5
RTECS No: SY5600000
UN No: 1076
EC No: 006-002-00-8

(cylinder)
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: cool cylinder by spraying with water but avoid contact of the substance with water. Combat fire from a sheltered position.

EXPOSURE		AVOID ALL CONTACT!	IN ALL CASES CONSULT A DOCTOR!
Inhalation	Burning sensation. Tightness in the chest. Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed (see Notes).	Closed system and ventilation.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin	Redness. Pain. ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves.	Remove contaminated clothes. ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes	Redness. Pain. Blurred vision.	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

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Chemical protection suit including self-contained breathing apparatus. Remove gas with fine water spray. Do NOT let this chemical enter the environment.	EU classification T+ Symbol R: 26-34 S: (1/2-)9-26-36/37/39-45 Note: 5 UN classification UN Hazard Class: 2.3 UN Subsidiary Risks: 8

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1076 NFPA Code: H4; F0; R1	Fireproof if in building. Isolated from work area. Separated from incompatible materials. See Chemical Dangers. Cool. Dry.

IMPORTANT DATA

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

Physical dangers
The vapour is heavier than air and may travel along the ground.

Chemical dangers
The substance decomposes on heating above 300°C, on contact with water and moisture, producing toxic and corrosive gases (carbon monoxide and hydrogen chloride). Reacts with aluminium, isopropyl alcohol.

Occupational exposure limits
TLV: 0.1 ppm as TWA; (ACGIH 2002).
EU OEL: 0.02 ppm, 0.08 mg/m³, as TWA; 0.1 ppm, 0.4 mg/m³, as STEL; (EU 2002).

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
The substance is irritating to the eyes, the skin and the respiratory tract. Inhalation of this gas may cause lung oedema (see Notes). The effects may be delayed. Exposure at high levels may result in death. Medical observation is indicated.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 8°C Melting point: -118°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

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.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT spray water on leaking cylinder (to prevent corrosion of cylinder).
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
Card has been partially updated in January 2008: see Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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Updated by AS. Approved by GS. Last update: 29.01.2008