International Chemical Safety Cards

PHOSPHORUS TRICHLORIDE

ICSC: 0696

Trichlorophosphine
Phosphorous chloride
PCl₃
Molecular mass: 137.35

ICSC #    0696
CAS #     7719-12-2
RTECS # TH3675000
UN #        1809
EC #         015-007-00-4
October 08, 1997 Peer reviewed

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 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. 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. 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.
T+ symbol
C symbol
R: 14-26/28-35-48/20
S: 1/2-7/8-26-36/37/39-45
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 (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

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 fumesincludinghydrogen chlorideandphosphorus 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:
TLV: 0.2 ppm as TWA; 0.5 ppm as STEL; (ACGIH 2004).
MAK: 0.5 ppm, 2.8 mg/mł;
Peak limitation category: I(1); Pregnancy risk group: IIc;
(DFG 2004).
OSHA PEL: TWA 0.5 ppm (3 mg/m³)
NIOSH REL: TWA 0.2 ppm (1.5 mg/m³) ST 0.5 ppm (3 mg/m³)
NIOSH IDLH: 25 ppm

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.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

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 inhalation therapy by a doctor or a person authorized by him/her, should be considered. Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.

Transport Emergency Card: TEC (R)-61S1809

NFPA Code: H3; F0; R2; W

ADDITIONAL INFORMATION

ICSC: 0696	PHOSPHORUS TRICHLORIDE
(C) IPCS, CEC, 1994

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.