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
Poly(éthylène glycol)
2000, for synthesis
Synonyme(s) :
PEG
Sélectionner une taille de conditionnement
| Conditionnement | Référence | Disponibilité | Prix |
|---|
A propos de cet article
vapor pressure
<0.1 hPa
Quality Level
form
flakes
autoignition temp.
420 °C
potency
28000 mg/kg LD50, oral (Rat), >20000 mg/kg LD50, skin (Rabbit)
greener alternative product characteristics
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
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
greener alternative category
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.[1]
- 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
1 of 1
Cet article | |||
|---|---|---|---|
| form flakes | form liquid | form liquid | form flakes |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| storage temp. no temp limit | storage temp. no temp limit | storage temp. 2-30°C | storage temp. 2-30°C |
| density 1.21 g/cm3 at 20 °C | density 1.124 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C |
| mp 49-52 °C | mp -50 °C | mp 33-40 °C | mp 58-63 °C |
| pH 4-7 (20 °C, 100 g/L in H2O) | pH 5-7 (20 °C, 100 g/L in H2O) | pH 4-7 (20 °C, 100 g/L in H2O) | pH 5-7 (20 °C, 100 g/L in H2O) |
Still not finding the right product?
Explore all of our products under Poly(éthylène glycol)
Classe de stockage
10 - Combustible liquids
wgk
WGK 1
flash_point_f
281.5 °F - closed cup
flash_point_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".
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Numéro d'article de commerce international
| Référence | GTIN |
|---|---|
| 8210375000 | 04022536472324 |
| 8210371000 | 04022536472317 |
-
How can I determine the shelf life / expiration / retest date of this product?
1 réponse-
Utile ?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 réponse-
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
Utile ?
-