# NIOSH Pocket Guide to Chemical Hazards
Phenylphosphine | CAS 638-21-1
C6H5PH2 | RTECS SZ2100000
Synonyms & Trade Names Fenylfosfin, PF, Phosphaniline | DOT ID & Guide
Exposure Limits | NIOSH REL: C 0.05 ppm (0.25 mg/m3)
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 4.50 mg/m3
Physical Description Clear, colorless liquid with a foul odor.
MW: 110.1 | BP: 320°F | FRZ: ? | Sol: Insoluble
VP: ? | IP: ? |  | Sp.Gr(59°F): 1.001
Fl.P: ? | UEL: ? | LEL: ? |
Combustible Liquid
Incompatibilities & Reactivities None reported [Note: Spontaneously combustible in high concentrations in air. Potential exposure to gaseous PF when polyphosphinates are heated above 392°F.]
Measurement Methods None available
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Daily Remove: When wet or contaminated Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms In animals: blood changes, anemia, testicular degeneration; loss of appetite, diarrhea, lacrimation (discharge of tears), hind leg tremor; dermatitis
Target Organs Blood, central nervous system, skin, reproductive system
See also: INTRODUCTION