Non-Toxic Antifreeze (Propylene Glycol Based)

25th October 2018



An image showing Non-Toxic Antifreeze (Propylene Glycol Based) in a 25 litre container

Why Buy Non-Toxic Antifreeze from ReAgent?

ReAgent can supply many types of antifreeze, including non-toxic propylene glycol based in 25L containers, 200 L drums and 1,000 IBC. Bulk discounts may be available for purchases over 4 items, but contact us for further information and to obtain a quote. We also offer more options, such as personalised labelling or bulk quantities.

About Propylene Glycol

Propylene glycol has only recently been used as an antifreeze, to replace a more toxic ethylene glycol. This compound, also known as propane-1,2-diol and 1,2-propanediol, is an organic compound with the formula C3H8O2. Highly hygroscopic, this colourless and odourless solution has a characteristic sweet taste.

Its use as antifreeze derives from the fact that it can lower water’s freezing point. Briefly, as propylene glycol dissolves in the water, it disrupts the formation of ice crystals and water can only freeze at lower temperatures.

Reason to Use Propylene Glycol Bases Antifreeze

The decision to swap from ethylene glycol to propylene glycol was not due to improved efficiency, but less toxicity. Ethylene glycol also has a characteristically sweet smell and taste, which has proven extremely dangerous for accidental ingestion by children and pets in particular.

An added problem is a difficult diagnosis, as early symptoms – vomiting and diarrhoea – can easily be mistaken with other illness. After even small quantities, ingested ethylene glycol is converted to calcium oxalate crystals, which can accumulate in heart, lungs and kidneys causing permanent damage if not treated.

Propylene glycol, on the other hand, is much less toxic as it’s converted mainly to pyruvic acid and acetic acid. The only by-product that may be potentially hazardous is propionaldehyde, but this is only produced in small quantities.

40 years’ experience

ReAgent started manufacturing chemical products over 40 years ago, and have built an enviable reputation for high-quality products and excellent customer service. We can supply a wide range of antifreeze products, from concentrate to ready-to-use, as well as red antifreeze or non-toxic products. Contact us for more information.


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