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

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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

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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: Are Your Products Compliant With International Standards?

A1: Yes, our company holds a number of internationally recognized core certifications. All production and operation activities strictly follow international environmental, safety and quality standards, and each batch of products is accompanied by a compliance test report to meet the chemical industry requirements in different regions around the world.


Q2: Do You Provide Customized Product Services?
A2: Yes, we have a professional R&D team and refined production capacity. We can customize chemical products of different specifications and performances according to customers' specific needs, and provide full-process technical support to meet the personalized application needs of downstream industries.


Q3: What Is The Approximate Delivery Cycle Of The Products?
A3: The delivery cycle varies according to product type, order quantity and destination. We have a complete global supply chain system to ensure fast and safe delivery of goods. For specific cycle, you can consult our sales team for detailed information.


Q4: How To Obtain Product Samples?
A4: You can contact our customer service or sales team to specify the specific model and specification of the required samples. We will provide free samples according to the actual situation, and the sample express fee can be negotiated.

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