Phosphorus pentasulfide
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CAS
1314-80-3
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P2S5/P4S10
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RTECS
TH4375000
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Synonyms & Trade Names
Phosphorus persulfide, Phosphorus sulfide, Sulfur phosphide
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DOT ID & Guide
1340 / 139
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Exposure
Limits
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NIOSH REL: TWA 1 mg/m3 ST 3 mg/m3
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OSHA PEL†: TWA 1 mg/m3
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IDLH
250 mg/m3
See: 1314803
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Conversion
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Physical Description
Greenish-gray to yellow, crystalline solid with an odor of rotten eggs.
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MW: 222.3 (P2S5); 444.6 (P4S10)
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BP: 957°F
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MLT: 550°F
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Sol: Reacts
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VP(572°F): 1 mmHg
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IP: ?
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Sp.Gr: 2.09
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Fl.P: ?
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UEL: ?
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LEL: ?
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Flammable Solid, which may SPONTANEOUSLY ignite in presence of moisture.
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Incompatibilities & Reactivities
Water, alcohols, strong oxidizers, acids, alkalis [Note: Reacts with water to form hydrogen sulfide, sulfur dioxide, and phosphoric acid.]
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Measurement Methods
None available
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Dust off solid; water flush
Breathing: Respiratory support
Swallow: Medical attention immediately
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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 an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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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
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Target Organs
Eyes, skin, respiratory system, central nervous system
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See also: INTRODUCTION
See MEDICAL TESTS: 0190
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