NIOSH Pocket Guide to Chemical Hazards

Phosphorus pentasulfide CAS 1314-80-3
P2S5/P4S10 RTECS TH4375000
Synonyms & Trade Names
Phosphorus persulfide, Phosphorus sulfide, Sulfur phosphide
DOT ID & Guide
1340 139
Exposure
Limits
NIOSH REL: TWA 1 mg/m3 ST 3 mg/m3
OSHA PEL�: TWA 1 mg/m3
IDLH 250 mg/m3 Conversion
Physical Description
Greenish-gray to yellow, crystalline solid with an odor of rotten eggs.
MW: 222.3/444.6
BP: 957°F
MLT: 550°F
Sol: Reacts
VP(572°F): 1 mmHg
IP: ?

Sp.Gr: 2.09
Fl.P: ?
UEL: ?
LEL: ?

Flammable Solid, which may SPONTANEOUSLY ignite in presence of moisture.
Incompatibilities & Reactivities
Water, alcohols, strong oxidizers, acids, alkalis [Note: Reacts with water to form hydrogen sulfide, sulfur dioxide, and phosphoric acid.]
Measurement Methods
None available
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily

First Aid (See procedures)
Eye: Irrigate immediately
Skin: Dust off solid; water flush
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 10 mg/m3: (APF = 10) Any supplied-air respirator*
Up to 25 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
Up to 50 mg/m3: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece
Up to 250 mg/m3: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern and having a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; apnea, coma, convulsions; conjunctivitis pain, lacrimation (discharge of tears), photophobia (abnormal visual intolerance to light), kerato-conjunctivity, corneal vesiculation; dizziness; headache; lassitude (weakness, exhaustion); irritability, insomnia; gastrointestinal disturbance
Target Organs Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION