
【化】 triethylene glycol; triglycol
Triethylene glycol (TEG) is a synthetic organic compound classified as a polyol, with the chemical formula ce{C6H14O4}. In Chinese-English technical dictionaries, it is commonly defined as "三甘醇" (sān gān chún), translating directly to "triple ethylene glycol" based on its molecular structure containing three repeating ethylene oxide units.
As a hygroscopic liquid, TEG's primary industrial application lies in natural gas dehydration systems, where it absorbs water vapor from gas streams to prevent pipeline corrosion and hydrate formation. Its high boiling point (285–287°C) and low vapor pressure make it ideal for continuous regeneration processes in gas processing plants.
Pharmaceutical-grade TEG serves as a solvent in topical antiseptics and air sanitizers due to its antimicrobial properties. The U.S. Food and Drug Administration recognizes its GRAS (Generally Recognized as Safe) status for specific applications (FDA, 2023). Recent studies at MIT Chemical Engineering Department (2024) demonstrate its emerging role in liquid desiccant cooling systems for energy-efficient buildings.
Material safety data sheets (MSDS) from Sigma-Aldrich indicate proper handling protocols: TEG requires storage in corrosion-resistant containers below 40°C and must avoid strong oxidizers. While exhibiting low acute toxicity (LD50 oral-rat: 22 g/kg), prolonged exposure mandates appropriate PPE under OSHA standards.
三甘醇(Triethylene glycol,TEG)是一种重要的有机化合物,以下从多个角度进行详细解释:
以上信息综合了物化性质、应用及安全要点,如需进一步了解特定场景下的使用规范,可参考权威化工手册或专业数据库。
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