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Merck

8.07490

Sigma-Aldrich

Polyethylene glycol

greener alternative

4000, for synthesis

Synonym(s):

Poly(ethylene glycol), Polyethylene glycol 4000, Polyglycol, Polyethylene oxide, Polyoxy ethylene, PEG 4000, PEG

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About This Item

Linear Formula:
H(OCH2CH2)nOH
CAS Number:
25322-68-3
MDL number:
MFCD00081839
UNSPSC Code:
13111021
EC Index Number:
500-038-2
NACRES:
NA.22

Key Documents

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vapor pressure

<0.01 hPa ( 20 °C)

Quality Level

200

form

solid

autoignition temp.

>320 °C (DIN 51794)

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

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pH

5-7 (20 °C, 100 g/L in H2O)

mp

53-58 °C

transition temp

flash point 270 °C

solubility

500 g/L

density

1.2 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

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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 4000 for synthesis. CAS No. 25322-68-3, EC Number 500-038-2.

Analysis Note

Hydroxyl value: 25 - 32
Melting range (lower value): ≥ 58 °C
Melting range (upper value): ≤ 62 °C
Average molecular mass: 3500 - 4500
Identity (IR): passes test

Storage Class Code

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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