Diphenyl sulfone

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.

Diphenyl sulfone

Names
Preferred IUPAC name 1,1′-Sulfonyldibenzene
Other names Diphenyl sulphone
Identifiers
CAS Number	127-63-9 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:78360
ChemSpider	29117
ECHA InfoCard	100.004.413
PubChem CID	31386
UNII	V25W2CFS3M Y
CompTox Dashboard (EPA)	DTXSID6041892
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

It is produced by the sulfonation of benzene with sulfuric acid and oleum. For typical processes, benzenesulfonic acid is an intermediate.^[1] It is also produced from benzenesulfonyl chloride and benzene.^[2]