232106

Phosphorus pentasulfide

99%

• Synonym(s): Phosphorus(V) sulfide
• Empirical Formula (Hill Notation): P₂S₅
• CAS Number: 1314-80-3
• Molecular Weight: 222.27
• EC Number: 215-242-4
• MDL number: MFCD00011441
• UNSPSC Code: 12352303
• PubChem Substance ID: 329752397
• NACRES: NA.21

Properties

• Quality Level: 200
• Assay: 99%
• form: powder
• bp: 514 °C
• mp: 280-284 °C (lit.)
• density: 2.09 g/mL at 25 °C (lit.)
• SMILES string: S=P(=S)SP(=S)=S
• InChI: 1S/P2S5/c3-1(4)7-2(5)6
• InChI key: HWVAJUNEPOKXLF-UHFFFAOYSA-N

Description

General description

Phosphorus pentasulfide is also referred to as phosphorus(V) sulfide. It is widely employed as a thiating, deoxygenating and dehydrating agent in various organic reactions. It readily transforms esters to dithioesters.

Application

Phosphorus pentasulfide may be employed in the preparation of the following:

• Bandgap polymer poly(isothianaphthene).
• 3,5-diiodo-2-thiopyridone and 3,5-diiodo-4-thiopyridone.
• Phosphorus pentasulfide can also be used:,In the conversion of carbonyls to thiocarbonyls.
• To activate alcohols and carboxylic acid.
• To convert furan to thiophene.

Safety Information

• Pictograms: GHS02,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H228,H260,H302,H332,H400
• Precautionary Statements: P210 - P223 - P231 + P232 - P273 - P370 + P378 - P422
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Flam. Sol. 1 - Water-react 1
• Supplementary Hazards: EUH029
• Storage Class Code: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable