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[Chemical Knowledge]：Properties and Uses of Coal to Ethylene Glycol

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Coal-to-ethylene glycol is an important raw material for chemical production, which has unique properties and a wide range of uses. This article will detail the nature and use of coal to ethylene glycol.

1. the properties of coal to ethylene glycol

coal to ethylene glycol is a colorless, transparent, slightly sweet viscous liquid with hygroscopicity. Its molecule contains two hydroxyl functional groups (-OH), so it has strong hydrophilicity and can be miscible with water in any proportion. In addition, coal-based ethylene glycol also has the following properties:

1. low toxicity: coal-based ethylene glycol has low toxicity and belongs to low toxicity compounds.

2. Good stability: coal glycol is thermally stable and can be used at high temperatures.

3. Good frost resistance: Coal-made ethylene glycol has a low freezing point and good frost resistance.

4. High boiling point: Coal to ethylene glycol has a high boiling point and can be operated at high temperatures.

2. the use of coal glycol

coal glycol as an important chemical raw material, has a wide range of applications in various fields, the following are its main uses:

1. Antifreeze: coal The freezing point of ethylene glycol is low, and it can be added to automobile coolant, aviation hydraulic oil, etc. as an antifreeze to prevent low-temperature freezing.

2. solvent: coal glycol can be used as a solvent for the production of paint, ink and other products.

3. production of polyester: coal glycol can react with raw materials such as terephthalic acid to produce polyester, used in the production of polyester fiber, polyester film and other products.

4. production of surfactants: coal glycol can be used as raw materials for the production of surfactants, such as alcohol ether sodium sulfate.

5. Production of alkyd resin: coal glycol can react with fatty acids and other raw materials to generate alkyd resin, used in the production of coatings, adhesives and other products.

In short, as an important chemical raw material, coal to ethylene glycol has been widely used in various fields. Due to its unique properties and wide range of uses, the production and research and development of coal-to-ethylene glycol have also attracted much attention. In the future, with the continuous development of science and technology, the application field of coal to ethylene glycol will continue to expand.

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