Bisphenol S
From Wikipedia, the free encyclopedia
| Bisphenol S | |
|---|---|
 |
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| IUPAC name | 4,4'-Sulfonyldiphenol |
| Other names | BPS, 4,4'-Sulfonylbisphenol, Bis(4-hydroxyphenyl)sulfone |
| Identifiers | |
| CAS number | [80-09-1] |
| Properties | |
| Molecular formula | C12H10O4S |
| Molar mass | 250.275 g/mol |
| Appearance | White colorless solid; forms needle shaped crystals in water |
| Density | 1.3663 g/cm³, solid |
| Melting point |
245 to 250 °C[1] |
| Solubility in water | insoluble in water; soluble in EtOH |
| Hazards | |
| R-phrases | 36[2] |
| S-phrases | 26[3] |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Bisphenol S (abbreviated BPS) is an organic compound with the formula (C6H4OH)2SO2. It has two phenol functional groups on either side of a sulfonyl group. It is commonly used as a reactant in epoxy reactions, and is used in curing fast drying epoxy resin glues.
[edit] Synthesis
Bisphenol S is prepared by the reaction of two equivalents of phenol with one equivalent of sulfuric acid.
- 2 C6H5OH + H2SO4 → (C6H4OH)2SO2
This reaction can also produce 2,4'-Sulfonyldiphenol.
[edit] History and Use
Bisphenol S is used in curing fast drying epoxy glues, and as an anti-corrosive. It is also commonly used as a reactant in polymer reactions.
