
alpha-Methylstyrene is similar to styrene in its polymerization, but if it is used instead of styrene to make ABS resin, the ABS resin will have better thermal stability. alpha-Methylstyrene is also used as a raw material for paints and adhesives.
- CAS: No. 98-83-9
- EINECS: No. 202-705-0
- Japan, Chemical Substances Control Law: No. 3-5
- Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
- Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.2 (non-water-soluble liquid).
Characteristics
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alpha-Methylstyrene, like styrene, is an aromatic hydrocarbon compound capable of addition polymerization. It has the following properties.
Common Names | α−Methylstyrene, Methylstyrene, alpha-Methylstyrene, Isopropenylbenzen |
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Structure | ![]() |
CAS No | 98-83-9 |
Japan, Chemical Substances Control Law METI-No. | 3-5, 3-8 |
Formula | C6H5C(CH3)=CH2 |
Molecular Weight | 118 |
Appearance | Clear Colorless liquid |
Melting Point (℃) | -23 |
Boiling Point (℃) | 161 |
Specific Gravity | 0.91 |
Flash Point (℃) | 45 |
Autoignition Temperature (℃) | 574 |
Flammability Range (%) | 1.9~6.1 |
Mitsubishi Chemical's α-Methylstyrene features high purity.
Applications
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For heat-resistant ABS, it is used instead of styrene. In addition, it is a raw material for organic compounds used as pigments, paint adhesive agents, etc. Also it is used as an additive for plastics.
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