Inhibited glycol is a heat transfer fluid designed for applications where environmental conditions require a low freezing point while retaining the good heat transfer efficiency of water. Glycols lower the freezing point of water preventing pipe burst. Inhibited glycols have corrosion inhibitors and are formulated specifically for a given application.

At Brenntag North America, we have a responsibility to foster safety and growth in businesses and corporations across the country. That is why we offer a huge selection of inhibited propylene and mono ethylene glycol for commercial and industrial use. Inhibited glycol products can have a variety of uses in professional settings while helping you make your facility’s operations more cost-effective and efficient. If you are a manufacturer or chemical producer in need of a working solution, choose Brenntag for the best inhibited glycol products. Our product search mechanism allows you to find your desired product in seconds with just a name or formula.

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Oil and gas plant

Industries using Inhibited Glycols

Inhibited glycols are flexible products used for heating and cooling and HVAC systems. They can serve the oil and gas, plastic, and chemical processing industries, while a wide variety of propylene glycol products can even get used in food industries.

Propylene glycol, which is marked as a safe additive, often appears in the food processing and pharmaceutical industries to maintain a certain level of moisture in products for a longer period. It can also act as a solvent for substances in the food and beverage industry, such as coloring and flavoring agents. Inhibited ethylene glycol, however, is a more hazardous compound most commonly found in automobile and company cooling systems.

Other companies may use inhibited glycols if they work with products such as:

  • Electrical power
  • Textiles
  • Polymers
  • Ink and paint
  • Wood

A molecule of inhibited propylene glycol is made up of three carbon atoms, eight hydrogen atoms, and two oxygen atoms. It has a CAS number of 57-55-6 and is known by the alternate names of propane-1,2-diol and 1,2-propanediol. The mass of propylene glycol is about 76.052 g/mol.

Inhibited propylene glycol will keep well in a sealed storage container as long it stays in a place with cool to moderate temperatures. This compound is a relatively safe chemical to handle, and it doesn’t require any special protection to use. Some of its features include:

  • Boiling point: 370°F
  • Flash point: 215°F
  • Solubility: Completely soluble in water
  • Color: Colorless
  • Odor: Odorless
  • Taste: Mostly tasteless
  • Density: Approximately 1.04 g/cu cm at room temperature

Since there is no special equipment required to use inhibited propylene glycol, you can easily wash it off your skin. However, you should avoid getting it into your eyes. If that happens, flush your eyes with water for at least five minutes. If you ingest a large amount, induce vomiting to remove it from your system. Make sure to always use it in a well-ventilated area. This additive is combustible but otherwise poses few major health or safety risks.

Inhibited ethylene glycol, also known as Ethane-1,2-diol and 1,2-ethanediol, is an alcohol substance built of two carbon units, six hydrogen units, and two oxygen units. Its structure varies significantly from inhibited propylene glycol, which makes it a greater danger for both personal and industrial uses. It appears as a liquid with a mass of approximately 62.037 g/mol and a CAS number of 107-21-1.

Because of its increased health and safety risks, ethylene glycol requires a bit more care in handling than propylene glycol. Some features of ethylene glycol are:

  • Boiling point: 387 degrees Fahrenheit
  • Flash point: 241 degrees Fahrenheit
  • Solubility: Completely soluble in water
  • Color: Colorless
  • Odor: Practically odorless
  • Taste: Sweet flavor
  • Density: Approximately 1.1135 g/cu cm at room temperature

Inhibited ethylene glycol can cause slight irritation on contact with your skin. Rubber gloves and protective clothing should always be worn when handling Inhibited Ethylene Glycol. Avoid getting it into your eyes. If this happens, flush your eyes with water immediately. Additionally, if you ingest the substance, you need to induce vomiting immediately. Three ounces is estimated to be a lethal dose when ingested. Ethylene glycol has a low vapor pressure, so inhaling too much is unlikely.


For propylene glycol, ethylene glycol, and a vast array of other specialty and chemical products, your best option is to contact Brenntag. We should be your ‘top of mind’ distributor for all glycols, and are the international leader in specialty and chemical distribution, committed to linking motivated customers with the premier manufacturers of chemical products across the globe. With 190 distribution locations all over the United States, we can offer you support from almost any area, no matter where you conduct your business.

We have both local and global geographic reach, distribution channels and product ranges to deliver first-class chemical products to your business. Our industry expertise and commitment to customer service means you will always get just the products you need when you need them. To learn more about buying inhibited glycols from Brenntag, contact us today.


This document is for informational purposes only. You accept sole responsibility for reading and complying with the Safety Data Sheets (SDS’s), as well as any other safety information, relating to the products listed herein. The information contained herein is based on Brenntag’s knowledge at the time of publication or release and not on any publications, independent studies, empirical evidence or other form of verification. You should not use or rely on any statements contained herein as a basis for any representations or warranties to your customers or end users as to the safety, efficacy or suitability of any product or for purposes of ensuring your compliance with any laws or regulations. Brenntag makes no warranties, express or implied, as to the accuracy, completeness, or adequacy of the information contained herein or as to fitness of any product for any particular purpose. Nothing contained herein shall be construed as an authorization to use or an inducement to practice any patent, trade secret or other intellectual property right. Before producing and distributing any product, it is your sole responsibility to adequately test and document the performance of the product and acquire any required intellectual property rights. You assume all risks for failing to do so and Brenntag shall not be liable (regardless of fault) to you, your employees, customers or end users or any third party for direct, special or consequential damages arising out of or in connection with the furnishing or use of this information. Please contact your local Brenntag representative if you have any questions about this information.