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8.07488

Polyethylenglykol

1000, for synthesis

Nachhaltigkeitsmerkmale

Synonym(e):

Poly(ethylenglykol), PEG

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Über diesen Artikel

Lineare Formel:
H(OCH2CH2)nOH
CAS-Nummer:
NACRES:
NA.22
EC Index Number:
500-038-2
UNSPSC Code:
13111021
MDL number:
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vapor pressure

<0.1 hPa ( 20 °C)

Quality Segment

form

liquid

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

Sustainability features

pH

4-7 (20 °C, 100 g/L in H2O)

mp

33-40 °C

transition temp

flash point 260 °C

density

1.2 g/cm3 at 20 °C

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

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. Polyethylene glycol (PEG) is an eco-friendly, biodegradable polymer widely used in pharmaceuticals and cosmetics. Its non-toxic nature and versatility make it a sustainable choice, derived from renewable resources, contributing to greener product formulations. Click here for more information.

Application

Polyethylene glycol 1000 for synthesis. CAS 25322-68-3, pH 4 - 7 (100 g/l, H₂O, 20 °C).

Analysis Note

Schmelzbereich (unterer Wert): ≥ 33 °C
Schmelzbereich (oberer Wert): ≤ 40 °C
Hydroxylzahl: 107 - 118
Mittlere Molmasse: 950 - 1050
Identität (IR): entspricht
Das Produkt kann aufgrund seines spezifischen Schmelzbereichs als Feststoff, Flüssigkeit, erstarrte oder unterkühlte Schmelze vorliegen.


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Lagerklasse

10 - Combustible liquids

Was ist los?

WGK 1

Flammpunkt (°F)

281.5 °F - closed cup

Flammpunkt (°C)

138.6 °C - closed cup



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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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