| Agent Name |
Phosphorus pentasulfide |
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| CAS Number |
1314-80-3 |
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| Formula |
P2-S5 |
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| Major Category |
Other Classes |
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| Synonyms |
Diphosphorus pentasulfide; Pentasulfure de phosphore [French]; Phosphoric sulfide; Phosphorus pentasulfide (P4S10); Phosphorus persulfide; Phosphorus sulfide (P2S5); Sirnik fosforecny [Czech]; Sulfur phosphide; Tetraphosphorus decasulfide; Thiophosphoric anhydride; [ChemIDplus] UN1340 |
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| Category |
Phosphorus Compounds |
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| Description |
Greenish-gray to yellow, crystalline solid with an odor of rotten eggs; [NIOSH] |
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| Sources/Uses |
Used to make lubricant additives, insecticides, matches, and other organic chemicals; [ACGIH] |
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| Comments |
Hepatic and renal failure are prominent in deaths due to acute phosphorus poisoning. Eye and respiratory irritation occur due to the hydrolysis products hydrogen sulfide and phosphoric acid. The TLV and STEL recommended correspond to those of phosphoric acid. [ACGIH] If left on clothing, can cause reddening of skin; [CHRIS] A skin, eye, and respiratory tract irritant; [ICSC] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| TLV (ACGIH) |
1 mg/m3 |
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| STEL (ACGIH) |
3 mg/m3 |
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| PEL (OSHA) |
1 mg/m3 |
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| IDLH (NIOSH) |
250 mg/m3 |
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| Excerpts from Documentation for IDLHs |
Phosphorus pentasulfide (P2S5) rapidly hydrolyzes to hydrogen sulfide (H2S) and phosphoric acid on contact with water or with moisture present in the air [ACGIH 1991]. |
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| Odor Threshold Low |
0.0047 ppm |
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| Explanatory Notes |
An odor threshold of 0.0047 ppm for phosphorus pentasulfide has been reported. [ACGIH] VP = 1 @ 572 degrees F; |
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| Flammability (NFPA) |
1: must be preheated |
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| Adverse Effects |
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| Toxic Pneumonitis |
Yes |
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| Dermatotoxin |
Skin Burns |
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| Hepatotoxin |
Hepatotoxin, Secondary |
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| Nephrotoxin |
Yes |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: PHOSPHORUS SULFIDE
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