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Ethylene Glycol vs. Polyethylene Glycol: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Published on December 31, 2023
Ethylene Glycol is a toxic organic compound used as an antifreeze, while Polyethylene Glycol is a non-toxic polymer used in pharmaceuticals and cosmetics.
Ethylene Glycol vs. Polyethylene Glycol

Key Differences

Ethylene Glycol, a simple diol, is primarily used in antifreeze and coolant solutions due to its low freezing point. Polyethylene Glycol (PEG), a polyether compound, is used in medical applications, lubricants, and personal care products for its solubility and non-toxicity.
Shumaila Saeed
Shumaila Saeed
Dec 31, 2023
In its pure form, Ethylene Glycol is a colorless, odorless, sweet-tasting, and poisonous liquid. Polyethylene Glycol, on the other hand, varies from a low-viscosity liquid to a solid, depending on its molecular weight, and is non-toxic.
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Shumaila Saeed
Dec 31, 2023
Ethylene Glycol is used in hydraulic brake fluids and inks for its hygroscopic nature. Polyethylene Glycol is commonly used as a laxative, in skin creams, and in drug delivery systems due to its biocompatibility and inertness.
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Shumaila Saeed
Dec 31, 2023
The toxic nature of Ethylene Glycol makes it hazardous for household use, particularly around pets and children. In contrast, Polyethylene Glycol is widely used in pharmaceuticals and cosmetics due to its safety profile.
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Shumaila Saeed
Dec 31, 2023
In industrial applications, Ethylene Glycol serves as a precursor to polymers and in the manufacture of polyester fibers. Polyethylene Glycol is often used as a surfactant, in the preparation of ceramics, and in various pharmaceutical formulations.
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Comparison Chart

Use

Antifreeze, coolant, industrial applications.
Pharmaceuticals, cosmetics, medical applications.
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Dec 31, 2023

Toxicity

Toxic and hazardous.
Generally non-toxic and safe.
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Physical Form

Colorless, odorless liquid.
Ranges from liquid to solid, depending on molecular weight.
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Applications

Brake fluids, polyester production.
Laxatives, skin creams, drug delivery systems.
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Nature

Hygroscopic and a precursor to polymers.
Biocompatible, used as a surfactant and in ceramics.
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Ethylene Glycol and Polyethylene Glycol Definitions

Ethylene Glycol

A hygroscopic compound used in industrial applications.
Ethylene glycol is essential in the production of polyester fibers.
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Dec 14, 2023

Polyethylene Glycol

Varies in form from liquid to solid.
Different molecular weights of polyethylene glycol are used for varied applications.
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Dec 14, 2023

Ethylene Glycol

A toxic liquid used in antifreeze.
The car's radiator was filled with ethylene glycol to prevent freezing in winter.
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Polyethylene Glycol

Employed as a surfactant in various formulations.
In this laboratory experiment, we use polyethylene glycol as a surfactant.
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Ethylene Glycol

Used in hydraulic brake fluids.
The mechanic topped up the brake fluid with ethylene glycol.
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Polyethylene Glycol

Used in personal care products for its safety.
The moisturizer contains polyethylene glycol for skin hydration.
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Ethylene Glycol

A diol compound, hazardous if ingested.
Warning labels on ethylene glycol caution against its toxic nature.
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Dec 14, 2023

Polyethylene Glycol

A compound used in drug delivery systems.
Polyethylene glycol enhances the effectiveness of certain medications.
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Ethylene Glycol

A sweet-tasting, colorless liquid.
Despite its sweet taste, ethylene glycol is extremely poisonous.
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Dec 14, 2023

Polyethylene Glycol

A non-toxic polymer used in pharmaceuticals.
Polyethylene glycol is a common ingredient in over-the-counter laxatives.
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Shumaila Saeed
Dec 14, 2023

Repeatedly Asked Queries

What is Polyethylene Glycol?

It's a non-toxic polymer used in pharmaceuticals, cosmetics, and medical applications.
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Dec 31, 2023

Can Ethylene Glycol be used in food products?

No, due to its toxicity, Ethylene Glycol is not safe for food use.
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Dec 31, 2023

Why is Ethylene Glycol used in antifreeze?

Its low freezing point makes it ideal for preventing freezing in engines.
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Dec 31, 2023

What is Ethylene Glycol?

It's a toxic liquid used mainly in antifreeze and industrial processes.
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Can Polyethylene Glycol be ingested?

Yes, it's used in medicinal products like laxatives.
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What are the dangers of Ethylene Glycol?

Ingestion can lead to poisoning, kidney failure, and can be fatal.
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How does Polyethylene Glycol affect drug delivery?

It enhances drug solubility and stability in the bloodstream.
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What determines the consistency of Polyethylene Glycol?

Its molecular weight; higher weights result in a more solid form.
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Are Ethylene Glycol and Polyethylene Glycol related chemically?

Yes, Polyethylene Glycol is a polymer derived from Ethylene Glycol.
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Dec 31, 2023

Is Polyethylene Glycol safe for skincare products?

Yes, it is commonly used in skincare products due to its safety and solubility.
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Is Polyethylene Glycol environmentally friendly?

Generally, it is considered safe for the environment.
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How is Ethylene Glycol disposed of?

It requires special handling and disposal due to its hazardous nature.
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How is Polyethylene Glycol produced?

It's synthesized through the polymerization of Ethylene Glycol.
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What industries use Ethylene Glycol?

Automotive, textile, and industrial manufacturing industries.
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Can Ethylene Glycol be used in medical applications?

No, its toxicity precludes its use in medical applications.
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Can Polyethylene Glycol be used in food packaging?

Yes, it's safe for use in certain types of food packaging.
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Dec 31, 2023

Can Polyethylene Glycol cause allergies?

It's rare, but some people may have sensitivities to it.
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Dec 31, 2023

Is Ethylene Glycol used in household products?

Due to its toxicity, it's rarely used in household products.
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Shumaila Saeed
Dec 31, 2023

Are there natural alternatives to Ethylene Glycol?

Yes, propylene glycol is a less toxic alternative.
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Shumaila Saeed
Dec 31, 2023

Is Ethylene Glycol used in heating systems?

Yes, it's used in some heating systems for its antifreeze properties.
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Shumaila Saeed
Dec 31, 2023

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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