Phosphoryl chloride
Trichlorophosphorus oxide
Trichlorophosphine oxide
POCl3
Molecular mass: 153.35
ICSC # 0190
CAS # 10025-87-3
RTECS # TH4897000
UN # 1810
EC # 015-009-00-5
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO contact with water.
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In case of fire in the surroundings:
powder, carbon dioxide
,
dry sand
,
NO hydrous agents
,
NO water
.
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Explosion
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In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water.
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Exposure
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Sore throat.
Cough.
Burning sensation.
Dizziness.
Laboured breathing.
Nausea.
Headache.
Unconsciousness.
Vomiting.
Weakness.
Shortness of breath.
Symptoms may be delayed (see Notes).
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Pain.
Redness.
Blisters.
Skin burns.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Pain.
Redness.
Severe deep burns.
Loss of vision.
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Burning sensation.
Abdominal pain.
Shock or collapse.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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See Chemical Dangers.
Cool.
Dry.
Well closed.
Keep in a well-ventilated room.
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Airtight.
Unbreakable packaging; put breakable packaging into closed unbreakable container.
T+ symbol
C symbol
R: 14-22-26-29-35-48/23
S: 1/2-7/8-26-36/37/39-45
UN Hazard Class: 8
UN Packing Group: II
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Important Data
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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 withalcohols, phenols, amines and other many materials.
Occupational Exposure Limits:
TLV: 0.1 ppm as TWA; (ACGIH 2004).
MAK: 0.2 ppm, 1.3 mg/m3
Peak limitation category: I(1); Pregnancy risk group: C;
(DFG 2005).
OSHA PEL: none
NIOSH REL: TWA 0.1 ppm (0.6 mg/m3) ST 0.5 ppm (3 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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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 20°C.
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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 105.8°C
Melting point: 1.25°C
Relative density (water = 1): 1.645
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Solubility in water: reaction
Vapour pressure, kPa at 27.3°C: 5.3
Relative vapour density (air = 1): 5.3
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Environmental
Data
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N O T E S
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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.
Transport Emergency Card: TEC (R)-80S1810 or 80GC1-II-X
NFPA Code: H3; F0; R2; W
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ADDITIONAL INFORMATION
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ICSC: 0190
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PHOSPHORUS OXYCHLORIDE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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