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
8.18897
Poli(etilenglicol)
20000 (stabilised) for synthesis
Sinónimos:
PEG
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65,40 €
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About This Item
65,40 €
presión de vapor
<0.01 hPa ( 20 °C)
Nivel de calidad
Formulario
flakes
temp. de autoignición
>320 °C
potencia
28000 mg/kg LD50, oral (Rat)
>20000 mg/kg LD50, skin (Rabbit)
pH
5-7 (20 °C, 100 g/L in H2O)
mp
58-63 °C
temperatura de transición
flash point 240 °C
solubilidad
500 g/L
densidad
1.2 g/cm3 at 20 °C
densidad aparente
400‑500 kg/m3
temp. de almacenamiento
2-30°C
cadena SMILES
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
Clave InChI
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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Aplicación
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]
Nota de análisis
Melting range (upper value): ≤ 66 °C
Hydroxyl value: 4 - 7
Average molecular mass: 16000 - 28000
Código de clase de almacenamiento
10 - Combustible liquids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
281.5 °F - closed cup
Punto de inflamabilidad (°C)
138.6 °C - closed cup
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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