PHOSPHORUS (YELLOW)†

Chemical Identification
Chemical Identification
CAS # 7723-14-0; 12185-10-3
Formula

P₄

Synonyms

elemental phosphorus; white phosphorus

Physical Properties
Physical Properties
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
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
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 Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
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
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
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:
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 

 

Notes:
 

 

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

5 mg/m³

Carcinogenic classifications: Not listed Notes:
 

 

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References
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

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Phosphorus (yellow). See annual publication for most recent information.

Last Updated Date : 01/08/2021