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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
8.21037
Polyethylene glycol
2000, for synthesis
Synonym(s):
Poly(ethylene glycol), Polyethylene glycol 2000, Polyglycol, Polyethylene oxide, Polyoxy ethylene, PEG 2000, PEG
About This Item
Recommended Products
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)
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
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Application
- An organic additive in the synthesis of metal nanoparticles to control the size and morphology of nanostructure.[1][2]
- A carbon source to prepare acidophilic highly fluorescent carbon dots (CDs) via the one-pot hydrothermal method.[3]
- 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.[2]
Analysis Note
Melting range (lower value): ≥ 50 °C
Melting range (upper value): ≤ 55 °C
Average molecular mass: 1900 - 2200
Identity (IR): passes test
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
281.5 °F - closed cup
Flash Point(C)
138.6 °C - closed cup
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘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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