Triethylene glycol dimethyl ether
CAS 112-49-2
EC 203-977-3
Formula C8H18O4
MW 178.23 g/mol
Solvents ElectronicsOil, Gas & EnergyLubricants & MetalworkingPharmaceuticals & Healthcare Solvent & Carrier
Description
Triethylene glycol dimethyl ether (CAS 112-49-2), also known as Triglyme, Glyme 4, and Hisolve MTM, is a linear polyether solvent with no assigned E-code. It belongs to the glycol ether family and is fully miscible with both water and hydrocarbons, making it chemically distinct from many conventional ether solvents.
In electronics manufacturing, Triglyme functions as a high-boiling reaction medium for lithium battery electrolyte formulations, where its coordination chemistry stabilizes lithium ions. In pharmaceutical synthesis, it serves as a co-solvent in controlled reactions requiring an aprotic, thermally stable medium. The oil and gas sector uses it as a selective solvent in gas treatment processes.
Triethylene glycol dimethyl ether is supplied under REACH compliance and is available in standard industrial drum and IBC packaging. No FCC or Ph.Eur. grade is typically designated. Buyers should confirm peroxide content specifications with the supplier prior to use in sensitive applications.
In electronics manufacturing, Triglyme functions as a high-boiling reaction medium for lithium battery electrolyte formulations, where its coordination chemistry stabilizes lithium ions. In pharmaceutical synthesis, it serves as a co-solvent in controlled reactions requiring an aprotic, thermally stable medium. The oil and gas sector uses it as a selective solvent in gas treatment processes.
Triethylene glycol dimethyl ether is supplied under REACH compliance and is available in standard industrial drum and IBC packaging. No FCC or Ph.Eur. grade is typically designated. Buyers should confirm peroxide content specifications with the supplier prior to use in sensitive applications.
Physical Properties
| Melting Point | -45 °C |
| Boiling Point | 216 °C |
| Density | 0.980 g/cm³ |
| Flash Point | 231 °F |
| Appearance | Water-white liquid; mild ether odor. D 0.9862 (20/20C), refr index 1.4233 (20C), flash p 232F (111C), bp 216.0C (760mmHg), 153.6C (100 mm Hg), fp ?46C. Completely soluble in water and hydrocarbons at 20C. May contain peroxides. Combustible. |
| Color | APHA: ≤20 |
| Form | Liquid |
| Water Solubility | Soluble |
| Vapor Pressure | 1.2 hPa (20 °C) |
| Refractive Index | n 20/D 1.423(lit.) |
| pH | 7 |
| Log P | -0.52 at 20℃ |
Safety & Handling (Learn More)
Danger GHS08 GHS07
H
H319H360H361
P
P203P280P318P405P501P264+P265P337+P317P305+P351+P338
Trade & Regulatory
| HS Code | 29094990 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 1 |
Other Names
1-methoxy-2-[2-(2-methoxyethoxy)ethoxy]ethaneTriglyme1,2-bis(2-methoxyethoxy)ethaneGlyme 4Hisolve MTMansulether161MethyltriglymeAnsul Ether 161
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