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PHOSPHORUS OXYCHLORIDE ICSC: 0190
Date of Peer Review: October 1997

Phosphoryl chloride
Trichlorophosphorus oxide
Trichlorophosphine oxide
CAS # 10025-87-3 POCl3
RTECS # TH4897000 Molecular mass: 153.35
UN # 1810
EC Index # 015-009-00-5
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with water.
In case of fire in the surroundings: powder, carbon dioxide, dry sand, NO hydrous agents, NO water.
EXPLOSION

In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water.
EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Sore throat. Cough. Burning sensation. Dizziness. Laboured breathing. Nausea. Headache. Unconsciousness. Vomiting. Weakness. Shortness of breath. Symptoms may be delayed (see Notes).
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin Pain. Redness. Blisters. Skin burns.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Pain. Redness. Severe deep burns. Loss of 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 Burning sensation. Abdominal pain. Shock or collapse. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Collect leaking and spilled liquid in sealable dry containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place. Personal protection: chemical protection suit including self-contained breathing apparatus.
Airtight. Unbreakable packaging; put breakable packaging into closed unbreakable container.
EU Classification
Symbol: T+, C
R: 14-22-26-29-35-48/23
S: (1/2-)-7/8-26-36/37/39-45
UN Classification
UN Hazard Class: 8
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-80S1810 or 80GC1-II-X
NFPA Code: H3; F0; R2; W
See Chemical Dangers. Cool. Dry. Well closed. Keep in a well-ventilated room.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
PHOSPHORUS OXYCHLORIDE ICSC: 0190
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
BROWN FUMING LIQUID, WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride and phosphorus oxides. Reacts violently with water producing heat and decomposition products including hydrochloric acid and phosphoric acid, causing fire and explosion hazard. Reacts violently with alcohols, phenols, amines and other many materials.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 ppm as TWA; (ACGIH 2004).
MAK: 0.2 ppm, 1.3 mg/m; Peak limitation category: I(1); Pregnancy risk group: C; (DFG 2005).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of vapour may cause lung oedema (see Notes). Exposure at high levels may result in death. The effects may be delayed. Medical observation is indicated.

PHYSICAL PROPERTIES
Boiling point: 105.8C
Melting point: 1.25C
Relative density (water = 1): 1.645
Solubility in water: reaction
Vapour pressure, kPa at 27.3C: 5.3
Relative vapour density (air = 1): 5.3
ENVIRONMENTAL DATA

NOTES
Reacts violently with fire extinguishing agents such as water. 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. Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005