出典:Wikipedia
出典:『Wikipedia』 (2011/06/28 20:06 UTC 版)
Styrene, also known as vinyl benzene, is an organic compound with the chemical formula C6H5CH=CH2. This derivative of benzene is a colorless oily liquid that evaporates easily and has a sweet smell, although high concentrations confer a less pleasant odor. Styrene is the precursor to polystyrene and several copolymers. Approximately 15 billion pounds are produced annually. On 10 June 2011, the US National Toxicology Program has described styrene as "reasonably anticipated to be a human carcinogen".