Chemical Product Library / Reference
Polystyrene
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Polystyrene |
|---|---|
| English synonyms | PS;Polystyrene;GPPS |
| Chinese name | 聚苯乙烯 |
| Chinese synonyms | PS;聚苯乙烯树脂;通用聚苯乙烯 |
| Chemical category | Engineering Plastics |
| CAS No. | 9003-53-6 |
| EINECS No. | Not provided |
| Molecular formula | (C8H8)n |
| Molecular weight | Not provided |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Melt index according to grade; density 1.04–1.06 g/cm³; Vicat softening point ≥80°C; residual monomer ≤0.1%
Performance characteristics
Colorless transparent thermoplastic, high rigidity, excellent electrical insulation and optical clarity
Application scenarios
Packaging, disposable tableware, electrical appliances, construction insulation (EPS/XPS), toys