Polystyrene
ALDRICH/430102 - average Mw ~192,000
Synonym: PS
CAS Number: 9003-53-6
MDL Number: MFCD00084450
Linear Formula: [CH2CH(C6H5)]n
Product Type: Chemical
| form | beads or pellets |
| InChI | 1S/C8H8/c1-2-8-6-4-3-5-7- |
| InChI key | PPBRXRYQALVLMV-UHFFFAOYSA |
| melt index | 6.0-9.0 g/10 min (200°C/5kg) |
| mol wt | average Mw ~192,000 |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | c1(ccccc1)C=C |
| transition temp | softening point 107 °C (Vicat, ASTM D 1525) |
| Application: | Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery. |
| Features and Benefits: | • Medium molecular weight (~192,000 Mw) balancing excellent mechanical strength and processability, making it suitable for varied applications. • Beads or pellets form allows for easy handling, processing, and uniform melting in manufacturing processes. • Melt index of 6.0–9.0 g/10 min (200°C/5kg) provides good flow characteristics, enabling efficient molding and extrusion. |
| General description: | Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 3 kg in poly drum |
| Physical form: | Thermoplastic amorphous polymer. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Refractive Index | n |
| UNSPSC | 12162002 |

