PHOSPHORUS OXYCHLORIDE
Chemical Identification | |
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CAS # | 10025-87-3 |
Formula |
Cl₃OP |
Synonyms |
phosphorus chloride; phosphorus oxytrichloride; phosphoryl chloride |
Physical Properties | |||
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Physical description | Clear, colorless to yellow, oily liquid with a pungent & musty odor. | ||
Boiling point | 223°F | Molecular weight | 153.32 |
Freezing point/melting point | 34.2°F | Vapor pressure | 40 mmHg at 81.14°F |
Flash point | Vapor density | 5.3 | |
Specific gravity | 1.645 at 77°F | Ionization potential | |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | 4 | NFPA fire rating | 0 |
NFPA reactivity rating | 2 | NFPA special instruction | W: Reacts violently or explosively with water. |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | ||||||
Sampling group | ||||||
Sampler/Sampling media | ||||||
Sampling time* | ||||||
Sampling volume (TWA)* | ||||||
Sampling flow rate (TWA)* | ||||||
Sampling volume (STEL/Peak/C)* | ||||||
Sampling flow rate (STEL/Peak/C)* | ||||||
Analytical method instruments | ||||||
Method reference | ||||||
Notes | ||||||
Special requirements |
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
Wipe Method | |
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Sampler/Sampling media |
Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
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PEL-TWA | REL-TWA |
0.1 ppm (0.6 mg/m³) |
TLV-TWA |
0.1 ppm [1979] |
PEL-TWA |
0.1 ppm (0.6 mg/m³) |
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PEL-STEL | REL-STEL |
0.5 ppm (3 mg/m³) |
TLV-STEL |
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PEL-STEL |
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PEL-C |
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REL-C |
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TLV-C |
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PEL-C |
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Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Notes:
Not established |
Notes:
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Notes:
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Notes:
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Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Phosphorus oxychloride NIOSH: Pocket Guide to Chemical Hazards - Phosphorus oxychloride Literature References
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Last Updated Date : 01/08/2021