Triethylene glycol, TEG, is a polyol and a homologue of ethylene glycol.
First of all, the physical properties should include appearance, boiling point, melting point, density, solubility, viscosity, etc. The boiling point of triethylene glycol is higher than that of diethylene glycol, about 285°C, and the melting point may be lower. The appearance is a colorless viscous liquid and it is hygroscopic.
Then there are the chemical properties. As a derivative of diols, it has the properties of alcohol and ether, can undergo esterification, etherification and other reactions, how stable it is, and whether it is easy to react with other substances.
Toxicity and safety are also very important. Users have asked about the toxicity of diethylene glycol before. The toxicity of triethylene glycol should be lower, it is slightly toxic, and it is less irritating to the skin.
There are also main uses. The main use of triethylene glycol is natural gas dehydration. Because it has strong hygroscopicity and high boiling point, it is suitable as a dehydrating agent. In addition, it can also be used as a solvent, moisturizer, etc.
