Synonyms: Elemental phosphorus, White phosphorus

OSHA IMIS Code Number: 2090

Chemical Abstracts Service (CAS) Registry Number: 7723-14-0

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TH3500000; 59636

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1381 136 Flammable Solid

NIOSH Pocket Guide to Chemical Hazards, Phosphorus (yellow): chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:

white to yellow, soft, waxy solid with acrid fumes in air
molecular weight: 124
vapor pressure: 0.026 mm
molecular formula: 535°F
melting point: 111°F

Incompatibilities: Air, all oxidizing agents, including elemental sulfur, strong caustics

OSHA Permissible Exposure Limit (PEL):

General Industry: 0.1 mg/m³

Construction Industry: 0.1 mg/m³ TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.02 ppm, 0.1 mg/m³ TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.1 mg/m³ TWA

Potential Symptoms: Eye, respiratory tract irritation; abdominal pain, nausea; jaundice; anemia; cachexia; dental pain; excessive salivation; jaw pain, swelling; skin, eye burns

Health Effects: Acute pulmonary damage (HE4); Cumulative bone and liver damage (HE3)

Affected Organs: Respiratory system, liver, kidneys, jaw, teeth, blood, eyes, skin

Primary Laboratory Sampling/Analytical Method (SLC1):

• sampling media: Tenax GC Tube (100/50 mg sections, 35/60 mesh)
  maximum volume: 100 Liters
  maximum flow rate: 0.2 L/min
  current analytical method: Gas Chromatography; GC/FPD
  method reference: 1 (NIOSH 7905)
  sampling and analytical error: 0.15
  method classification: Fully Validated

Bulk Method:

• Limit the amount of bulk submitted to one gram or one mL.

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