Chemical and physical properties of Triethylene glycol:

• Molecular Formula: C6H14O4
• Synonyms: TEG, Triethylenglycol, 2-[2-(2-hydroxy-ethoxy)-ethoxy]-ethanol, TRIGOL
• Cas Number: 112-27-6
• Molecular Mass: 150.174 g·mol⁻¹
• Form: Viscose Liquid
• Flashpoint: 165 °C
• Boiling Point: 125-127 °C0.1 mm Hg(lit.)
• Melting Point: −7 °C(lit.)
• Vapor Pressure: <0.01 mm Hg ( 20 °C)
• Water Solubility: SOLUBLE
• Density: 1.124 g/mL at 20 °C(lit.)
• Log P: -1.75 at 25℃

Triethylene glycol is a clear, colorless, viscous, stable liquid with a slightly sweetish odor. Soluble in water; immiscible with benzene, toluene, and gasoline. Combustible. Because it has two ether and two hydroxyl groups its chemical properties are closety related to ethers and primary alcohols. It is a good solvent for gums, resins, nitrocellulose, steam-set printing inks and wood stains. With a low vapor pressure and a high boiling point, its uses and properties are similar to those of ethylene glycol and diethylene glycol. Because it is an efficient hygroscopic agent it serves as a liquid desiccant for removing water from natural gas. It is also used in air conditioning systems designed to dehumidify air.

The global Triethylene glycol market is projected to reach US$ 27,130.3 Million by 2032, growing at a CARG of 5.3%.

Plasticizers contributed to 9.9% of the global triethylene glycol market share, in terms of revenue. Asia Pacific, in 2017. Plasticizers are additives which are added not only to plastics, but also to cement, clay, concrete, and wallboard among others to processability and increase the flexibility and durability. Plasticizers have become key materials , not just to build homes and offices, but also to manufacture an increasing number of products that provide essential benefits to everyday lives owing to low toxicity, good water solubility, improved equipment cleanup, and smooth burnout during firing operations. Numerous everyday products such as luggage, electrical cables, sport equipment, tablecloths, roofing membranes, footwear, stationery, flooring, wall covering and other automotive applications, are made with flexible PVC. In addition, some plasticizers are used in rubber products, coatings, sealants and adhesives. The plasticizers are projected to witness a rise in demand as a result of the growth in the global plastics industry, thereby, driving the global TEG market share.

Asia Pacific TEG market size was 215.6 kilo tones in 2017. The growth is being driven primarily by the increased government incentives for natural gas exploration projects, particularly in China and India. For instance, in September 2018, the Indian government approved tax incentives including lower royalties to improve the recovery of oil & gas from again fields and new gas by 52 billion cubic meters over the next 20 years.

Increased use of natural gas could bring significant local and global benefits in the Asia region. China is the world’s largest source of greenhouse gas (GHG) emissions and India is the third largest and fastest-growing source of GHG emissions. According to the International Energy Agency (IEA), Asia’s emerging economies account for about half of the global demand for gas growth and their share would be 60& by 2040. This is expected to propel the demand for natural gas dehydration, thereby, acting as a growth driver for the triethylene glycol (TEG) market share in the region over forecast period.

The main Triethylene Glycol (TEG) usage and application is in the oil and gas industry, TEG is used widely in the oil and gas pipelines as a dehydrating agent that removes water from the gas and oil and avoids freezing, making the transfer of gas and oil very easier and more smooth.

Triethylene Glycol (TEG) is used as the plasticizer for the production of the Vinyl Polymer which is used for the manufacturing of PVC Resin, one of the most used products in different industries especially for producing different pipelines uses for transferring a diverse range of fluids.

One of the most popular and growing uses of Triethylene Glycol (TEG) is as an air sanitizer and cleaner, with the issues such as global warming and more pollution across the world, this application of the TEG will grow dramatically in the short-term and long-term future.

The other uses and application of Triethylene Glycol (TEG) is as a mild disinfectant and as a dehumidifying agent in different air conditioning systems because of its low toxicity, low odor, and antimicrobial properties.

Also, Triethylene Glycol (TEG) is used as a solvent for many products and as an intermediate in the production of diverse chemical and petrochemical substances and products.

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