Triethylene glycol

Source: Wikipedia, the free encyclopedia.
Triethylene glycol
Names
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
)
Abbreviations TEG
969357
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard
100.003.594 Edit this at Wikidata
EC Number
  • 203-953-2
260942
RTECS number
  • YE4550000
UNII
  • InChI=1S/C6H14O4/c7-1-3-9-5-6-10-4-2-8/h7-8H,1-6H2 ☒N
    Key: ZIBGPFATKBEMQZ-UHFFFAOYSA-N ☒N
  • InChI=1/C6H14O4/c7-1-3-9-5-6-10-4-2-8/h7-8H,1-6H2
    Key: ZIBGPFATKBEMQZ-UHFFFAOYAS
  • OCCOCCOCCO
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)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
Related compounds
Related diols
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

smoke machine
" fluid in the entertainment industry.

Properties

Triethylene glycol is a member of a homologous series of dihydroxy

hydrocarbons
.

Preparation

TEG is prepared commercially as a co-product of the oxidation of

catalyst, followed by hydration of ethylene oxide
to yield mono(one)-, di(two)-, tri(three)- and tetraethylene glycols.

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

Pseudomonas phage phi6 become more infectious when treated with triethylene glycol.[14]

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

  1. ^ "OUST Aerosol - Clean Scent Ingredients". S. C. Johnson & Son. 2010. Retrieved 2014-02-24.
  2. ^ QB Johnson Manufacturing Archived 2012-05-13 at the Wayback Machine
  3. ^ 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
  4. ^
    PMID 18139414
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