Polyethylene Glycol

Polyethylene Glycol

CAS No.: 25322-68-3
Molecular Formula: (C2H4O)nH2O
Molecular Weight: 0
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product description

Polyethylene Glycol (PEG) is a polyether compound with the formula HO(CH₂CH₂O)ₙH, available in various molecular weights, widely used in pharmaceuticals, cosmetics, food, and industrial applications.


Chemical Properties

PropertyValue

Melting point

64-66 °C

Boiling point

>250°C

density

1.27 g/mL at 25 °C

vapor density

>1 (vs air)

vapor pressure

<0.01 mm Hg ( 20 °C)

refractive index

n20/D 1.469

Fp

270 °C

storage temp.

2-8°C

solubility

H2O: 50 mg/mL, clear, colorless

form

waxy solid

Specific Gravity

1.128

color

White to very pale yellow

PH

5.5-7.0 (25℃, 50mg/mL in H2O)

Water Solubility

Soluble in water.

Sensitive

Hygroscopic

λmax

λ: 260 nm Amax: 0.6λ: 280 nm Amax: 0.3

Merck

14,7568

Stability:

Stable. Incompatible with strong oxidizing agents.

LogP

-0.698 at 25℃

NIST Chemistry Reference

Polyethylene glycol(25322-68-3)

EPA Substance Registry System

Polyethylene glycol (25322-68-3)


Safety Information

PropertyValue

Hazard Codes

Xi,T

Risk Statements

36/38-52/53-33-23/24/25

Safety Statements

26-36-24/25-61-45-36/37

WGK Germany

3

RTECS

TQ4110000

F

3-9

Autoignition Temperature

581 °F

Hazard Note

Harmful

TSCA

Yes

HS Code

39072011

Hazardous Substances Data

25322-68-3(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 28000 mg/kg LD50 dermal Rabbit > 20000 mg/kg


Product Usage

Polyethylene Glycol (PEG for short), with the chemical formula HO-(CH₂CH₂O)ₙ-H, is a water-soluble polymer. Its appearance varies from colorless transparent liquid to white solid depending on the molecular weight, with good water solubility, biocompatibility, chemical stability, non-toxicity and odorlessness. Its core applications are extensive. In the medical field, it is used as a drug carrier, cosolvent and ointment base, which can improve drug solubility, extend drug efficacy, and is also used in sustained-release preparations and targeted drug delivery systems. In the food industry, as a food additive, it is used as a thickener, emulsifier and humectant to improve food taste and stability. In addition, it is used in the cosmetics field to moisturize, lock water and soften the skin; in the industrial field, it is used as a lubricant and dispersant for coatings, plastic modification, etc., and is a versatile functional polymer material in multiple fields.


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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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