MilliporeSigma
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441147

Sigma-Aldrich

Polystyrene

average Mw ~350,000, average Mn ~170,000

Synonym(s):
PS
Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

form

pellets

melt index

2.0-4.0 g/10 min (200°C/5kg)

mol wt

average Mn ~170,000
average Mw ~350,000

impact strength

21 J/m (Izod, ASTM D 256, 23 °C, notched)

impurities

≤5% mineral oil

transition temp

Tg 95 °C

density

1.04 g/mL at 25 °C

elongation

ASTM D 638 - 1.5% (at break)

InChI

1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2

InChI key

PPBRXRYQALVLMV-UHFFFAOYSA-N

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Related Categories

Application

Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery.

Packaging

1 kg in poly bottle

Features and Benefits

Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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