PHOSPHORUS (YELLOW)†
| CAS # | 7723-14-0; 12185-10-3 |
|---|---|
| Formula |
P₄ |
| Synonyms |
elemental phosphorus; white phosphorus |
| Physical description | White to yellow, soft, waxy solid with acrid fumes in air. | ||
|---|---|---|---|
| Boiling point | 536°F | Molecular weight | 123.89 |
| Freezing point/melting point | 111.4°F | Vapor pressure | 0.03 mmHg |
| Flash point | Vapor density | ||
| Specific gravity | 1.82 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 4 | NFPA fire rating | 4 |
| NFPA reactivity rating | 2 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 2090 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | Tenax® GC tube (100/50 mg) [Supelco 20832-U] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 5-100 L |
||
| Sampling flow rate (TWA)* | 0.01-0.2 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | GC-FPD | ||
| Method reference | NIOSH 7905 (fully validated) | ||
| 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 Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
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 |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
0.1 mg/m³ |
REL-TWA |
0.1 mg/m³ |
TLV-TWA |
0.1 mg/m³ [1992] |
PEL-TWA |
0.1 mg/m³ |
| PEL-STEL | REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
|
| PEL-C | REL-C |
|
TLV-C |
|
PEL-C |
|
|
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: |
Notes:
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Notes:
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Notes:
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| Health factors: See NIH-NLM PubChem. | IDLH |
5 mg/m³ |
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| Carcinogenic classifications: Not listed |
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
|
NOAA: CAMEO Chemicals - Phosphorus, white, dry or under water or in solution NIOSH: Pocket Guide to Chemical Hazards - Phosphorus (yellow) Literature References
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Last Updated Date : 01/08/2021