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Chemical Sampling Information: |
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| Phosphorus Trichloride |
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General Description
Synonyms: Phosphorus chloride
OSHA IMIS Code Number: 2093
Chemical Abstracts Service (CAS) Registry Number: 7719-12-2
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: TH3675000
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1809 137
NIOSH Pocket Guide to Chemical Hazards, Phosphorus trichloride: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 0.5 ppm, 3 mg/m3 TWA
OSHA Permissible Exposure Limit (PEL) for Construction Industry: 29 CFR 1926.55 Appendix A -- 0.5 ppm, 3 mg/m3 TWA
OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 0.5 ppm, 3 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.2 ppm, 1.1 mg/m3 TWA; 0.5 ppm, 2.8 mg/m3 STEL
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.2 ppm, 1.5 mg/m3 TWA; 0.5 ppm, 3 mg/m3 STEL
Health Factors
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 25 ppm
Potential symptoms: Irritation of eyes, skin, nose, throat; pulmonary edema (may be delayed); eye, skin burns; headache, dizziness; cough, bronchitis, pneumonia; sore throat; lachrymation; loss of vision; nausea, vomiting; INGES ACUTE: Abdominal pain; burning sensation; shock or collapse.
Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Bronchial Pneumonia (HE10); Pulmonary edema (HE11)
Affected organs: Respiratory system, eyes, skin
Note: Can react violently with fire extinguishing or spill dispersing agents containing water. Reaction with water produces phosphoric acid, hydrochloric acid and phosphorus oxides.
Date Last Revised: 07/21/2004
Literature Basis:
- NIOSH Pocket Guide to Chemical Hazards: Phosphorus trichloride.
- International Chemical Safety Cards (WHO/IPCS/ILO): Phosphorus trichloride.
- Kapias, T. and Griffiths, R.F.: Spill behavior using REACTPOOL. Part III. Results for accidental releases of phosphorus trichloride (PCl(3)) and oxychloride (POCl (3)) and general discussion. J. Hazard. Mater. 81(3): 223-249, 2001.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
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sampling media: Midget Fritted Glass Bubbler (MFGB) containing 15 mL Deionized Water
maximum volume: 100 Liters maximum flow rate: 0.2 L/min (TWA)
maximum volume: 3 Liters maximum flow rate: 0.2 L/min (STEL)
current analytical method: Colorimetric
method reference: NIOSH Analytical Method (NIOSH 6402)
method classification: Fully Validated
note: Submit as a separate sample.
Wipe sampling: No
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