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441147

Polystyrene

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

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Synonym(s):

PS

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Size/SKUAvailabilityPrice
1 kg

Available to ship TODAYfromMILWAUKEE

$79.10

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

100

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

dust mask type N95 (US), Eyeshields, Gloves

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCZ9239
    MKCZ9238
    MKCB9723
    MKBV4969V
    MKCL2307

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    Questions

    1–5 of 5 Questions  

    1. What is the tacticity of this polystyrene

      1 answer

      1. The tacticity of this product has not been tested.

        Helpful?

    2. How can I determine the shelf life / expiration / retest date of this product?

      1 answer

      1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
        For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
        For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
        For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

        Helpful?

    3. How is shipping temperature determined? And how is it related to the product storage temperature?

      1 answer

      1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

        Helpful?

    4. What dimension has one pellet? I am looking for a particle between 1 - 5 mm in length and width? May do you know the density?

      1 answer

      1. Unfortunately, the particle size is not a test specification for this product.

        Helpful?

    5. What is the refractive index of product_441147 ?

      1 answer

      1. Unfortunately, the refractive index of this product is not determined.

        Helpful?

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