What are the properties of styrene monomer (CAS:100-42-5)?

Styrene monomer (CAS:100-42-5) is a transparent, colorless liquid and an important organic chemical raw material, commonly used in the manufacture of materials such as plastics and rubber.

Properties of Styrene Monomer (CAS:100-42-5)

Styrene monomer is a colorless to pale yellow oily liquid with an aromatic odor. Its chemical formula is C8H8, and its molecular weight is 104.15 g/mol.

Styrene monomer has a high boiling point (145°C) and a low melting point (-30.6°C), making it easy to store and transport in liquid form at room temperature.

Styrene has a high refractive index (1.5467), exhibiting good transparency. Styrene is flammable, with a flash point of 31°C.

Styrene Monomer Chemical Properties

Styrene monomer contains highly reactive vinyl groups and readily undergoes free radical polymerization to form polystyrene. Styrene can also copolymerize with other monomers to form various copolymers, such as SBR, SAN, and ABS. Styrene readily self-polymerizes under ultraviolet light, therefore stabilizers must be added during storage to prevent polymerization. Styrene can also undergo addition and substitution reactions to produce various organic derivatives, which have wide applications in the chemical industry.

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