Diphenyl sulphone

Diphenyl sulfone

Names
IUPAC name Phenylsulfonylbenzene
Other names Diphenyl sulphone
Identifiers
CAS Number	127-63-9
3D model (Jmol)	Interactive image
ChEBI	CHEBI:78360
ChemSpider	29117
ECHA InfoCard	100.004.413
PubChem CID	31386
InChI InChI=1S/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYSA-N InChI=1/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYAU
SMILES O=S(=O)(c1ccccc1)c2ccccc2
Properties
Chemical formula	C12H10O2S
Molar mass	218.27 g·mol−1
Melting point	123 °C (253 °F; 396 K)
Boiling point	379 °C (714 °F; 652 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Diphenyl sulfone is an organosulfur compound with the formula (C₆H₅)₂SO₂. It is a white solid that is soluble in organic solvents. It is used as a high temperature solvent. Such high temperature solvents are useful for processing highly rigid polymers, e.g., PEEK, which only dissolve in very hot solvents.

It is produced by the sulfonation of benzene with sulfuric acid and oleum. For typical processes, benzenesulfonic acid is an intermediate. It is also produced from benzenesulfonyl chloride and benzene.