Agent Name

Phosphorus sesquisulfide

CAS Number

1314-85-8

Formula

P4-S3

Major Category

Other Classes

Synonyms

Phosphorus sulfide (P4S3); Phosphorus(III) sulfide(IV); Sesquisulfure de phosphore [French]; Tetraphosphorus trisulfide; Trisulfurated phosphorus; [ChemIDplus] UN1341

Category

Sulfur Compounds

Description

Yellowish-green solid; [Merck Index] Light yellow powder; [Aldrich MSDS]

Sources/Uses

Used in organic synthesis and to make matches and friction strips for safety-match boxes; [HSDB]

Comments

A dangerous fire risk by friction; [Hawley] A skin, eye, and respiratory tract irritant; Occupationally exposed individuals have reported quickly developing erythema with vesicles or pustules accompanied by pain and pruritis; Allergic contact dermatitis and contact urticaria have also been reported; Emergency treatment: "Phosphorus"; [HSDB] Ignites easily by friction; Reacts slowly with water producing phosphoric acid and hydrogen sulfide; A strong reducing agent; May ignite on exposure to moisture; [CAMEO] Causes changes in renal tubules and glomeruli in oral lethal-dose studies of rabbits; [RTECS] A mucous membrane and upper respiratory tract irritant; [Aldrich MSDS]

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Phosphorus sesquisulfide, free from yellow or white Phosphorus."

Flammability (NFPA)

1: Must be preheated

Adverse Effects
Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Other Information

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