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Sigma-Aldrich

Polyethylenglykol

10000, for synthesis

Synonym(e):

Poly(ethylenglykol), Polyglycol, Polyethylenoxid, PEG 10000, Polyoxyethylen, PEG

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About This Item

Lineare Formel:
H(OCH2CH2)nOH
CAS-Nummer:
25322-68-3
MDL-Nummer:
MFCD00081839
UNSPSC-Code:
13111021
EG-Index-Nummer:
500-038-2
NACRES:
NA.22
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Dampfdruck

<0.01 hPa ( 20 °C)

Qualitätsniveau

200

Form

liquid

Selbstzündungstemp.

340 °C

Wirksamkeit

28000 mg/kg LD50, oral (Rat)
>20000 mg/kg LD50, skin (Rabbit)

pH-Wert

5-7 (20 °C, 100 g/L in H2O)

Kinematische Viskosität

500-900 cSt(20 °C)

mp (Schmelzpunkt)

58-63 °C

Übergangstemp.

flash point 265 °C

Dichte

1.2 g/cm3 at 20 °C

Schüttdichte

400‑500 kg/m3

Lagertemp.

no temp limit

SMILES String

C(CO)O

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

InChIKey

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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Allgemeine Beschreibung

Polyethylene glycol (PEG) is a synthetic, hydrophilic, biocompatible polymer that has a wide range of uses in PEGylation, surface conjugation, nanoparticle coating, and crosslinking for hydrogels. PEGs are made by polymerizing ethylene oxide via a ring-opening reaction to produce a wide range of molecular weights and molecular weight distributions (polydispersity).

Anwendung

Polyethylene glycol 10000 can be used as a surfactant in the synthesis of Ni12P5 hollow microspheres via the hydrothermal method in the presence of hexamethylenetetramine (HMT). PEG 10000 significantly improves the formation of high-quality hollow microspheres, without this surfactant morphology is near-spherical particles.[1]
It can also be used as:
  • A reactant to synthesize N-PEGylated-thiazolium salt, which is used as an organocatalyst for the benzoin condensation.[2]
  • A nonionic dispersive agent in the preparation Nd2Si2O7 ceramic pigment by a co-precipitation method.[3]

Hinweis zur Analyse

Schmelzbereich (unterer Wert): ≥ 59 °C
Schmelzbereich (oberer Wert): ≤ 64 °C
Hydroxylzahl: 9 - 12
Mittlere Molmasse: 9000 - 12500
Identität (IR): entspricht

Lagerklassenschlüssel

10 - Combustible liquids

WGK

WGK 1

Flammpunkt (°F)

281.5 °F - closed cup

Flammpunkt (°C)

138.6 °C - closed cup

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Die Dokumentenbibliothek aufrufen

Effects of precipitant and surfactant on co-precipitation synthesis of Nd2Si2O7 ceramic pigment
Ke Shanjun, et al.
Dyes and Pigments, 118 (2015)
N-PEGylated Thiazolium Salt: A Green and Reusable Homogenous Organocatalyst for the Synthesis of Benzoins and Acyloins
Haghighi AJ, et al.
Catalysis Letters, 151(6) (2021)
Jun Li et al.
Journal of colloid and interface science, 332(1), 231-236 (2009-01-16)
In this paper, we report the successful synthesis of Ni(12)P(5) hollow spheres via a facile hydrothermal route, employing white phosphorus (WP) and nickel nitrate as the reactants in the presence of hexamethylenetetramine (HMT) and polyethylene glycol 10000 (PEG-10000). The phase

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

    1 Antwort

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

    1 Antwort

    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/449/386/product-dating-information-mk.pdf

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