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Merck

8.21037

Polyethylene glycol

greener alternative

2000, for synthesis

Synonym(s):

Poly(ethylene glycol), Polyethylene glycol 2000, Polyglycol, Polyethylene oxide, Polyoxy ethylene, PEG 2000, PEG

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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

Key Documents

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InChI

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

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

vapor pressure

<0.1 hPa

form

flakes

autoignition temp.

420 °C

potency

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

greener alternative product characteristics

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pH

4-7 (20 °C, 100 g/L in H2O)

kinematic viscosity

46-55 cSt(20 °C) (50% solution)

mp

49-52 °C

transition temp

flash point 250 °C

solubility

600 g/L

density

1.21 g/cm3 at 20 °C

bulk density

400‑500 kg/m3

greener alternative category

Aligned

storage temp.

no temp limit

Quality Level

200

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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 2000 is a hydrophilic linear polymer that can be used as:
  • An organic additive in the synthesis of metal nanoparticles to control the size and morphology of nanostructure.
  • A carbon source to prepare acidophilic highly fluorescent carbon dots (CDs) via the one-pot hydrothermal method.
  • A dispersion stabilizer to synthesize amorphous Fe2O3 nanoparticles by microwave irradiation method. During the synthesis, PEG-2000 inhibits nonhomogeneous precipitation to obtain homogeneous precipitation of the metal nanoparticles.

Analysis Note

Hydroxyl value: 51 - 63
Melting range (lower value): ≥ 50 °C
Melting range (upper value): ≤ 55 °C
Average molecular mass: 1900 - 2200
Identity (IR): passes test

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)

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Yujuan Chen et al.
ACS omega, 2(8), 5251-5259 (2017-08-31)
Acidophilic highly-photoluminescent ionic liquid (IL)-modified carbon dots (CDs) were fabricated directly from polyethylene glycol-2000 (PEG2000N) by a simple one-step hydrothermal method in a system containing an IL (1-butyl-3-methylimidazolium bromide [C4mim]Br) and hydrochloric acid (HCl). In this process, PEG2000N works as

Global Trade Item Number

SKUGTIN
8.21037.100004022536472317
8.21037.500004022536472324

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