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
181994
Poly(ethylene oxide)
average MV 200,000 (nominal), powder, hydroxyl, BHT as inhibitor
Synonyma:
Polyethylene oxide, PEO
Vybrat velikost
| Vám/Skladová položka | Dostupnost | Cena |
|---|---|---|
5 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 1 710,00 Kč 1 282,50 Kč |
250 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 4 380,00 Kč |
500 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 7 350,00 Kč |
O této položce
1 282,50 Kč
Ceníková cena1 710,00 KčUložit 25 %Název produktu
Poly(ethylene oxide), average Mv 200,000 (nominal), powder
form
powder
Quality Segment
mol wt
average Mv 200,000 (nominal)
contains
200-500 ppm BHT as inhibitor
greener alternative product characteristics
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
viscosity
65-115 cP, 5 % in H2O(25 °C, Brookfield)(lit.)
transition temp
Tm 65 °C
Ω-end
hydroxyl
α-end
hydroxyl
application(s)
battery manufacturing
greener alternative category
SMILES string
[H]OCCO
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
Application
This biocompatible polymer can be widely used in the field of biomedical research and tissue engineering. For example, it can be used in the fabrication of biodegradable polyurethane/graphene oxide scaffolds.
1 of 1
Tato položka | |||
|---|---|---|---|
| form powder | form powder | form powder | form powder |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| mol wt average Mv 200,000 (nominal) | mol wt average Mv 400,000 (nominal) | mol wt average Mv ~300,000 (nominal) | mol wt average Mv 100,000 (nominal) |
| application(s) battery manufacturing | application(s) battery manufacturing | application(s) battery manufacturing | application(s) - |
| greener alternative category | greener alternative category | greener alternative category | greener alternative category |
| contains 200-500 ppm BHT as inhibitor | contains 200-500 ppm BHT as inhibitor | contains 200-500 ppm BHT as inhibitor | contains 200-500 ppm BHT as inhibitor |
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Skladovací třída
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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what's the PDI value for product 181994. Thanks .
1 answer-
PDI (Polydispersity index) is defined Mw/Mn, the ratio of the weight-average molecular weight to the number-average molecular weight. Unfortunately, this product is not assayed for either the Mw or Mn; it is assayed for viscosity, which correlates to the nominal viscosity-average molecular weight (Mv) value that is part of the product name.
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