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441147

Sigma-Aldrich

聚苯乙烯

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

同義詞:

PS

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About This Item

線性公式:
[CH2CH(C6H5)]n
CAS號碼:
9003-53-6
MDL號碼:
MFCD00084450
分類程式碼代碼:
12162002
PubChem物質ID:
24867334
NACRES:
NA.23
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形狀

pellets

熔體指數

2.0-4.0 g/10 min (200°C/5kg)

分子量

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

衝擊強度

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

雜質

≤5% mineral oil

轉變溫度

Tg 95 °C

密度

1.04 g/mL at 25 °C

延伸率

ASTM D 638 - 1.5% (at break)

SMILES 字串

c1(ccccc1)C=C

InChI

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

InChI 密鑰

PPBRXRYQALVLMV-UHFFFAOYSA-N

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相關類別

應用

挤出成型的发泡包装、餐具、瓶子和玩具。注塑成型的包装容器、玩具和一次性餐具。

特點和優勢

坚硬透明、中等强度的聚合物，无生物活性，具有良好的尺寸稳定性。易受外界（紫外线）影响而降解。

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 3

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCW8307
MKCW9501
MKCT7609
MKCT7608
MKCP7904

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聚丙烯 Isotactic, average Mw ~250,000, average Mn ~67,000

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Questions

1–4 of 4 Questions  

  1. 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

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  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/449/386/product-dating-information-mk.pdf

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  3. 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.

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  4. What is the refractive index of product_441147 ?

    1 answer

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

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