Skip to Content
Merck

Key Documents

View All Documentation

8.19015

Polyethylene glycol

greener alternative

3000, for synthesis

Synonym(s):

Poly(ethylene glycol), Polyethylene glycol 3000, Polyglycol, Polyethylene oxide, Polyoxy ethylene, PEG 3000, PEG

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
H(OCH2CH2)nOH
CAS Number:
25322-68-3
NACRES:
NA.22
EC Index Number:
500-038-2
UNSPSC Code:
13111021
MDL number:
MFCD00081839
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

vapor pressure

<0.1 hPa ( 20 °C)

Quality Level

200

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

Greener Alternative Product

pH

4-7 (20 °C, 100 g/L in H2O)

mp

55-58 °C

transition temp

flash point 270 °C

density

1.21 g/cm3 at 20 °C

bulk density

400‑500 kg/m3

greener alternative category

Aligned

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 3000 can be used as:
  • A surface-modification agent in the synthesis of monodispersed magnetite colloidal magnetic nanoparticles.
  • A precipitating agent in the crystallization of oligoxyloglucan reducing-end specific cellobiohydrolase (OXG-RCBH) by the hanging-drop vapor diffusion method.
  • A solvent and phase-transfer catalyst (PTC) in the application of aqueous biphasic reactive extraction.
  • An additive in the preparation of polysulfone membrane to study the porometry.

Analysis Note

Hydroxyl value: 34 - 42
Melting range (lower value): ≥ 55 °C
Melting range (upper value): ≤ 59 °C
Average molecular mass: 2700 - 3300
Identity (IR): passes test

Still not finding the right product?

Explore all of our products under Polyethylene glycol

Storage Class

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'.

Need A Sample COA?

This is a sample Certificate of Analysis (COA) and may not represent a recently manufactured lot of this specific product.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library