International Chemical Safety Cards

PHOSPHORUS TRICHLORIDE ICSC: 0696
PHOSPHORUS TRICHLORIDE
Trichlorophosphine
Phosphorous chloride
PCl3
Molecular mass: 137.35
CAS # 7719-12-2
RTECS # TH3675000
ICSC # 0696
UN # 1809
EC # 015-007-00-4
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with water.
NO hydrous agents. NO water. In case of fire in the surroundings: powder, carbon dioxide and dry sand.
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. Nausea. Vomiting. Shortness of breath. Laboured breathing. Symptoms may be delayed (see Notes).
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest. Half-upright position. Artificial respiration if indicated. 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. Lacrimation. 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 STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place (extra personal protection: chemical protection suit including self-contained breathing apparatus).
    		Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. See Chemical Dangers. Dry. Well closed. Ventilation along the floor.
    		Airtight. Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
    C symbol
    R: 34-37
    S: (1/2-)7/8-26-45
    UN Hazard Class: 6.1
    UN Subsidiary Risks: 8
    UN Packing Group: I
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0696 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    PHOSPHORUS TRICHLORIDE ICSC: 0696

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS OR YELLOW, 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 with oxidants. Reacts violently with water producing heat and decomposition products including hydrochloric acid and phosphorous acid, causing fire and explosion hazard. Reacts violently with alcohols, phenols and bases. Attacks metals and other many materials.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV (as TWA): 0.2 ppm; 1.1 mg/m3; as STEL: 0.5 ppm; 2.8 mg/m3 (ACGIH 1997).


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation or 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 above the OEL may result in death. The effects may be delayed. Medical observation is indicated.


    PHYSICAL
    PROPERTIES
    Boiling point: 76░C
    Melting point: -112░C
    Relative density (water = 1): 1.6
    Solubility in water: reaction
    		Vapour pressure, kPa at 21░C: 13.3
    Relative vapour density (air = 1): 4.75
    Relative density of the vapour/air-mixture at 20░C (air = 1): 1.5
    ENVIRONMENTAL
    DATA
    N O T E S
    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 spray, by a doctor or a person authorized by him/her, should be considered.
    Transport Emergency Card: TEC (R)-81
    NFPA Code: H3; F0; R2; W
    ADDITIONAL INFORMATION


    ICSC: 0696 PHOSPHORUS TRICHLORIDE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or 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. 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.