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441147

Polystyrene

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

Synonym(s):

PS

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About This Item

Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
9003-53-6
UNSPSC Code:
12162002
PubChem Substance ID:
24867334
NACRES:
NA.23
MDL number:
MFCD00084450
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form

pellets

Quality Segment

melt index

2.0-4.0 g/10 min (200°C/5kg)

mol wt

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

feature

hydrophobic

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)

SMILES string

c1(ccccc1)C=C

InChI

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

InChI key

PPBRXRYQALVLMV-UHFFFAOYSA-N

Application

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

Features and Benefits

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

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Storage Class

11 - Combustible Solids

WGK

WGK 3

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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