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
8.21037
Poli(etilenglicol)
2000, for synthesis
Características de sostenibilidad
Sinónimos:
PEG
Seleccione un Tamaño
| Talla/SKU | Disponibilidad | Precio |
|---|
Acerca de este artículo
vapor pressure
<0.1 hPa
Quality Segment
form
flakes
autoignition temp.
420 °C
potency
28000 mg/kg LD50, oral (Rat), >20000 mg/kg LD50, skin (Rabbit)
sustainability
Sustainability features
pH
4-7 (20 °C, 100 g/L in H2O)
kinematic viscosity
46-55 cSt(20 °C) (50% solution)
mp
49-52 °C
transition temp
flash point 250 °C
solubility
600 g/L
density
1.21 g/cm3 at 20 °C
bulk density
400‑500 kg/m3
storage temp.
no temp limit
SMILES string
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
Application
- An organic additive in the synthesis of metal nanoparticles to control the size and morphology of nanostructure.
- A carbon source to prepare acidophilic highly fluorescent carbon dots (CDs) via the one-pot hydrothermal method.
- A dispersion stabilizer to synthesize amorphous Fe2O3 nanoparticles by microwave irradiation method. During the synthesis, PEG-2000 inhibits nonhomogeneous precipitation to obtain homogeneous precipitation of the metal nanoparticles.
Analysis Note
Melting range (lower value): ≥ 50 °C
Melting range (upper value): ≤ 55 °C
Average molecular mass: 1900 - 2200
Identity (IR): passes test
Still not finding the right product?
Explore all of our products under Poli(etilenglicol)
Clase de almacenamiento
10 - Combustible liquids
¿Qué está pasando?
WGK 1
Punto de inflamación (°F)
281.5 °F - closed cup
Punto de inflamación (°C)
138.6 °C - closed cup
Elija entre una de las versiones más recientes:
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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
Helpful?
-