Styrene
Styrene is an organic compound with the chemical formula C6H5CH=CH2. Its structure consists of a vinyl group as substituent on benzene. Styrene a colorless, oily liquid, although aged samples can appear yellowish. The compound evaporates easily and has a sweet smell, although high concentrations have a less pleasant odor.[vague] Styrene is the precursor to polystyrene and several copolymers, and is typically made from benzene for this purpose. Approximately 25 million tonnes of styrene were produced in 2010, increasing to around 35 million tonnes by 2018.
Application
Used in production of Polystyrene, Expandable polystyrene (EPS), Styrene Butadiene Rubber Elastomers (SBR), Styrene Butadiene Latexes, Acrylo Nitrile Butadiene Styrene (ABS) and emulsion polymers, whose end users include packaging, construction, automotive and household goods.
| Chemical formula | C8H8 |
|---|---|
| Molar mass | 104.15 g/mol |
| Appearance | colorless oily liquid |
| Odor | sweet, floral |
| Density | 0.909 g/cm3 |
| Melting point | −30 °C (−22 °F; 243 K) |
| Boiling Point | 145 °C (293 °F; 418 K) |
| Solubility in water | 0.03% (20 °C) |
| log P | 2.70 |
| Vapor Pressure | 5 mmHg (20 °C) |
| Magnetic susceptibility (χ) | −6.82×10−5 cm3/mol |
| Refractive index (nD) | 1.5469 |
| Viscosity | 0.762 cP at 20 °C |
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