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
8.18897
Poly(éthylène glycol)
20000 (stabilised) for synthesis
Synonyme(s) :
PEG
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About This Item
Pression de vapeur
<0.01 hPa ( 20 °C)
Niveau de qualité
Forme
flakes
Température d'inflammation spontanée
>320 °C
Puissance
28000 mg/kg LD50, oral (Rat)
>20000 mg/kg LD50, skin (Rabbit)
pH
5-7 (20 °C, 100 g/L in H2O)
Pf
58-63 °C
Température de transition
flash point 240 °C
Solubilité
500 g/L
Densité
1.2 g/cm3 at 20 °C
Masse volumique apparente
400‑500 kg/m3
Température de stockage
2-30°C
Chaîne SMILES
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
Clé InChI
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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Application
It can also be used as:
- A surfactant in the synthesis of nanomaterials by various methods to control the size and morphology of nanostructure.[2][3]
- A support to prepare zero-valent iron-PEG nanocomposite material (Fe/PEG) applicable in the removal of Pb(II) from aqueous solutions.[4]
Remarque sur l'analyse
Melting range (upper value): ≤ 66 °C
Hydroxyl value: 4 - 7
Average molecular mass: 16000 - 28000
Code de la classe de stockage
10 - Combustible liquids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
281.5 °F - closed cup
Point d'éclair (°C)
138.6 °C - closed cup
Certificats d'analyse (COA)
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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