Tetraphosphorus trisulfide
[CAS# 1314-85-8]

Identification

• Name: Tetraphosphorus trisulfide
• Synonyms: 3,5,7-Trithia-1,2,4,6-tetraphosphatricyclo[2.2.1.0(2,6)]heptane
• Molecular Formula: P₄S₃
• Molecular Weight: 220.09
• CAS Registry Number: 1314-85-8
• EC Number: 215-245-0

Properties

• Solubility: Very slightly soluble (0.31 g/L) (25 ºC), Calc.^*
• Density: 2.03 g/cm³ (20 ºC)^**
• Melting point: 172.5 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

Safety Data

• Hazard Symbols: GHS02;GHS07;GHS09 Danger
• Hazard Statements: H228-H260-H302-H400

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Substances or mixtures which in contact with water emit flammable gases	Water-react.	1	H260
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Acute toxicity	Acute Tox.	4	H302
Flammable solids	Flam. Sol.	2	H228
Serious eye damage	Eye Dam.	1	H318
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Flammable solids	Flam. Sol.	1	H228
Acute toxicity	Acute Tox.	3	H301
Skin sensitization	Skin Sens.	1	H317

• Hazardous Chemical?: Yes