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
8.18897
Polyethylene glycol
Greener Alternative
20000 (stabilised) for synthesis
Synonym(s):
Poly(ethylene glycol), PEG
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 kg | Check Cart for Availability | $77.60 |
5 kg | Check Cart for Availability | $270.00 |
About This Item
vapor pressure
<0.01 hPa ( 20 °C)
Quality Segment
form
flakes
autoignition temp.
>320 °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
5-7 (20 °C, 100 g/L in H2O)
mp
58-63 °C
transition temp
flash point 240 °C
solubility
500 g/L
density
1.2 g/cm3 at 20 °C
bulk density
400‑500 kg/m3
greener alternative category
storage temp.
2-30°C
SMILES string
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
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.
- A support to prepare zero-valent iron-PEG nanocomposite material (Fe/PEG) applicable in the removal of Pb(II) from aqueous solutions.
Analysis Note
Melting range (upper value): ≤ 66 °C
Hydroxyl value: 4 - 7
Average molecular mass: 16000 - 28000
1 of 1
This Item | |||
|---|---|---|---|
| description 20000 (stabilised) for synthesis | description 3000, for synthesis | description 1000, for synthesis | description 1500, for synthesis |
| form flakes | form liquid | form liquid | form solid |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C |
| density 1.2 g/cm3 at 20 °C | density 1.21 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C |
| mp 58-63 °C | mp 55-58 °C | mp 33-40 °C | mp 43-49 °C |
| greener alternative product characteristics Safer Solvents and Auxiliaries | greener alternative product characteristics Safer Solvents and Auxiliaries | greener alternative product characteristics Safer Solvents and Auxiliaries | greener alternative product characteristics Safer Solvents and Auxiliaries |
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Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
281.5 °F - closed cup
flash_point_c
138.6 °C - closed cup
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How can I determine the shelf life / expiration / retest date of this product?
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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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