Agent Name

Tetraphosphorus heptasulfide

CAS Number

12037-82-0

Formula

P4-S7

Major Category

Other Classes

Synonyms

Phosphorus sulfide (P4S7); Phosphorus heptasulfide, free from yellow or white phosphorus; [ChemIDplus] Heptasulfure de phosphore, ne contenant pas de phosphore jaune ou blanc (French DOT); Heptasulfuro de fosforo, que no contenga fosforo blanco o amarillo (Spanish DOT); [CAMEO] UN1339

Category

Sulfur Compounds

Description

Light yellow or light grey solid; [CAMEO]

Comments

A strong reducing agent; Highly flammable; Reacts with water and moisture producing hydrogen sulfide and phosphoric acid; Exposure to moisture may also cause spontaneous ignition; [CAMEO] See "Phosphorus sesquisulfide." See "Hydrogen sulfide" and "Phosphoric acid."

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Phosphorus heptasulfide, free from yellow or white Phosphorus; [ChemIDplus]

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