Phosphorus pentasulfide |
Synonyms & Trade Names Phosphorus persulfide, Phosphorus sulfide, Sulfur phosphide |
CAS No. 1314-80-3 |
RTECS No. TH4375000 |
DOT ID & Guide 1340 139 |
FormulaP2S5/?P4S10 |
Conversion |
IDLH 250 mg/m3
See: 1314803 |
Exposure Limits NIOSH REL: TWA 1 mg/m3 ST 3 mg/m3
OSHA PEL†: TWA 1 mg/m3 |
Measurement Methods
None available
See: NMAM or OSHA Methods |
Physical Description Greenish-gray to yellow, crystalline solid with an odor of rotten eggs. |
MW: 222.3 (P2S5)
444.6 (P4S10) |
BP: 957°F |
MLT: 550°F |
Sol: Reacts |
VP(572°F): 1 mmHg |
IP: ? |
Sp.Gr: 2.09 |
Fl.P: ? |
UEL: ? |
LEL: ? |
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| 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.] |
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-conjunctivitis, corneal vesiculation; dizziness; headache; lassitude (weakness, exhaustion); irritability, insomnia; gastrointestinal disturbance |
Target Organs Eyes, skin, respiratory system, central nervous system |
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Personal Protection/Sanitation (See protection codes)
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 |
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 |
| See also: INTRODUCTION See ICSC CARD: 1407 See MEDICAL TESTS: 0190 |
