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Mono propylene glycol also known as propylene glycol, PG, propan1, 2diol, MPG is a clear, colourless, and viscous liquid with a characteristic odour and the molecular formula C3H8O2, CAS: 57-55-6. It is soluble in water, and has hygroscopic properties.
Mono Propylene Glycol Chemical Structure Composition.
Mono propylene glycol is produced from propylene oxide. The most common process is by the non-catalytic hydrolysis of propylene oxide in a high-temperature and high-pressure environment. The second method is the catalytic one, which can proceed at 150 °C, in the presence of ion exchange resin, or a small amount of sulphuric acid or alkali. It can also be produced from glycerol which is a bio-diesel by-product.
The demand for, and consumption of, mono propylene glycol is high with an estimated 1.2 million tonnes produced yearly by plants situated around the world.
It has a flash point of 103 °C and a specific gravity of 1.04.
Mono propylene glycol is utilized across many different industries and some chemical manufacturers produce two grades of MPG to meet these varied needs.
The first grade is used in the food, cosmetics, and pharmaceutical industries. MPG is used as a solvent for food colourings and flavourings. In the personal care industry it is used as a moisturiser in make-up, shampoo, bubble bath and baby wipes, to name but a few examples. The pharmaceutical industry uses MPG as a solvent in oral, injectable, and topical formulations.
The main application for industrial grade MPG is as an antifreeze and aircraft wing and runway de-icer because the freezing point of MPG lowers upon mixing with water. It is also used in heat transfer liquids such as engine coolants.
It can also be used as a chemical intermediate in the production of high performance unsaturated polyester resins used in paints and varnishes. It is also an excellent solvent that is utilised in printing inks and it is also used in the manufacture of detergents which are used in the petroleum, sugar-refining, and paper making industries.
Arpadis is one of the largest chemical distributor in Europe.
Arpadis is handling the storage, transport, export & import formalities of Mono Propylene Glycol globally.