Triethylene glycol
Names | |
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Preferred IUPAC name
2,2′-[Ethane-1,2-diylbis(oxy)]di(ethan-1-ol) | |
Other names
2-[2-(2-Hydroxyethoxy)ethoxy]ethanol
Triglycol | |
Identifiers | |
3D model (
JSmol ) |
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Abbreviations | TEG |
969357 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard
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100.003.594 |
EC Number |
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260942 | |
PubChem CID
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RTECS number
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C6H14O4 | |
Molar mass | 150.174 g·mol−1 |
Appearance | Colorless liquid |
Density | 1.1255 g/mL |
Melting point | −7 °C (19 °F; 266 K) |
Boiling point | 285 °C (545 °F; 558 K) |
Hazards | |
NFPA 704 (fire diamond) | |
Related compounds | |
Related diols
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Ethylene glycol, Diethylene glycol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Triethylene glycol, TEG, or triglycol is a
Properties
Triethylene glycol is a member of a homologous series of dihydroxy
Preparation
TEG is prepared commercially as a co-product of the oxidation of
Applications
TEG is used by the oil and gas industry to "dehydrate" natural gas. It may also be used to dehydrate other gases, including CO2, H2S, and other oxygenated gases.[2] It is necessary to dry natural gas to a certain point, as humidity in natural gas can cause pipelines to freeze, and create other problems for end users of the natural gas. Triethylene glycol is placed into contact with natural gas, and strips the water out of the gas. Triethylene glycol is heated to a high temperature and put through a condensing system, which removes the water as waste and reclaims the TEG for continuous reuse within the system. The waste TEG produced by this process has been found to contain enough benzene to be classified as hazardous waste[3] (benzene concentration greater than 0.5 mg/L).
Triethylene glycol is well established as a relatively mild
This article or section possibly contains synthesis of material which does not verifiably mention or relate to the main topic. (November 2015) |
Safety
According to the European Chemicals Agency (ECHA), no hazards have been classified https://echa.europa.eu/es/substance-information/-/substanceinfo/100.003.594
References
- ^ "OUST Aerosol - Clean Scent Ingredients". S. C. Johnson & Son. 2010. Retrieved 2014-02-24.
- ^ QB Johnson Manufacturing Archived 2012-05-13 at the Wayback Machine
- ^ 40 CFR 261.24; State of Michigan, Department of Environmental Quality, Waste and Hazardous Materials Division, Hazardous Waste File; Lee 8 Storage Facility, Olivet, MI; March 2009 Inspection and analytical results
- ^ PMID 18139414.
- S2CID 26198638.
- ^ PMID 20996927.
- PMID 19871600.
- ^ PMID 18141117.
- PMID 17770126.
- PMID 13363384.
- ^ PMID 18888328.
- PMID 17772135.
- PMID 19822378.
- PMID 28030577.