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Butadiene, also known as 1,3-butadiene, is a
colorless, flammable gas with the chemical formula C4H6. It is a simple
conjugated diene with two double bonds, making it a highly reactive compound.
Butadiene is primarily used in the production of synthetic rubber, particularly
styrene-butadiene rubber (SBR) and polybutadiene rubber (BR).
Here are some key details about butadiene along with its CAS number:
- Chemical formula: C4H6
- Molecular weight: Approximately 54.09 g/mol
- CAS Number: 106-99-0
- Appearance: Colorless gas at room
temperature and pressure
- Odor: Characteristic, gasoline-like odor
- Melting point: Approximately -108.9°C
(-164°F)
- Boiling point: Approximately -4.4°C (24°F)
- Density: 0.62 g/cm³ (gas at 0°C and 1 atm)
Butadiene is considered a hazardous chemical due to its flammability and potential health risks associated with inhalation, skin contact, and ingestion. It is handled and transported with care to prevent exposure and accidents.
In addition to its primary use in rubber production, butadiene is also used as a monomer in the synthesis of various polymers and copolymers, including acrylonitrile-butadiene-styrene (ABS) and styrene-butadiene (SB) plastics. It is an important intermediate in the production of chemicals such as adiponitrile, which is used in the manufacture of nylon, and other specialty chemicals.
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