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8.07483

Sigma-Aldrich

Poly(éthylène glycol)

200, for synthesis

Synonyme(s) :

PEG

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About This Item

Formule linéaire :
H(OCH2CH2)nOH
Numéro CAS:
25322-68-3
Numéro MDL:
MFCD00081839
Code UNSPSC :
13111021
Numéro de classement CE :
500-038-2
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Pression de vapeur

<0.01 hPa ( 20 °C)

Niveau de qualité

200

Forme

liquid

Température d'inflammation spontanée

350 °C (DIN 51794)

Puissance

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

pH

5-7 (20 °C, 100 g/L in H2O)

pb

>150 °C

Pf

-50 °C

Température de transition

flash point 180 °C

Solubilité

soluble 70 g/L

Densité

1.124 g/cm3 at 20 °C

Température de stockage

no temp limit

Chaîne SMILES 

C(CO)O

InChI

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

Clé InChI

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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Application

Polyethylene glycol 200 can be used as:
  • A structure-directing agent to synthesize iron vanadate (FeVO4) nanoparticles via co-precipitation method.[1]
  • An organic additive to prepare crystalline nanorods of calcium tungstate (CaWO4) using calcium chloride and sodium tungstate via solvothermal process.[2]
  • A surface modifier in the synthesis of calcium peroxide nanoparticles using CaCl2 as a precursor via hydrolysis-precipitation method.[3]
  • A green solvent in combination with H2O in the preparation of 4-sulfanylcoumarins by sulfanylation of 4-tosyloxycoumarins with thiourea and alkyl halides.[4]

Remarque sur l'analyse

Density (d 20 °C/ 4 °C): 1.124 - 1.126
Hydroxyl value: 535 - 590
Average molecular mass: 190 - 210
Identity (IR): passes test

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

281.5 °F - closed cup

Point d'éclair (°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".

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Questions

1–5 of 5 Questions  

  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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  3. IS YOUR PEG 200 USP PHARMACEUTICAL GRADE?

    1 answer

    1. This item is intended for research use only and is not suitable for pharmaceutical manufacturing. Please see the following links below to review products that are pharmaceutical grade options:
      https://www.sigmaaldrich.com/product/mm/817001
      https://www.sigmaaldrich.com/product/mm/817005
      https://www.sigmaaldrich.com/product/mm/817019
      https://www.sigmaaldrich.com/product/mm/817045

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  4. What is the concentration of this product?

    1 answer

    1. This product is a neat liquid considered to be a 100% concentration.

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  5. What is the concentration of this product?

    1 answer

    1. This product a neat liquid considered to be a 100% concentration.

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