What is Butyl Glycol?

Butyl glycol (also known as BG, 2-butoxyethanol, glycol monobutyl ether and ethylene glycol monobutyl ether) is a clear, colourless, oily liquid with a unique yet mild odour and has the formula C6H14O2.  Butylglycol is miscible with water and common organic solvents. It has been produced commercially for over half a century where it is most commonly used in the paint industry.

Butyl Glycol

How is it produced?

Butyl glycol is produced by reacting ethylene oxide and normal butanol (n-butanol) using a catalyst.  If the ratio of ethylene oxide to n-butanol is greater than one then di- and tri- ethylene glycol monoethers are also produced.

World production is estimated at between 300-500 KT per annum.

How is it stored and distributed?

Butyl glycol is stored and transported in carbon steel, stainless steel or teflon containers and can be moved in bulk or in drums.  It has a specific gravity of 0.9 and a flash point of 60 °C (closed cup) and has been classified as harmful but is not classified as dangerous for any form of transport.

Butyl Glycol Uses

Butyl glycol usage is dominated by the paint industry which consumes approximately 75 % of all the BG produced.  This is because it is a low volatility solvent and it can therefore both extend the drying times of coatings and improve their flow.

Other applications include use as a solvent in printing inks and textile dyes and as a component of hydraulic fluids.  It is also a component of drilling and cutting oils and is a major component of Corexit 9527, which is an oil spill dispersant product.

It is also a chemical intermediate and, as such, is a starting material in the production of butyl glycol acetate which is, itself, an excellent solvent.  It is also a starting material in the production of plasticisers by the reaction of phthalic anhydride.

Butyl glycol is also something that is used regularly in most households as it is a component of many home cleaning products.  It provides very good cleaning power for domestic cleaning products and also provides the characteristic odour that we associate with many of these products.  It also plays the same role in some industrial and commercial surface cleaners.

For more details on our Butyl Glycol or if you would like to chat to one of our team, please contact our UK office on 44+(0)1483 203224, our Antwerp office on +32 03 205 16 66 or visit our contact us page.

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