| Identification | More | [Name]
2,2'-(Ethylenedioxy)diethanol | [CAS]
112-27-6 | [Synonyms]
1,2-BIS(2-HYDROXYETHOXY)ETHANE
2,2-ETHYLENEDIOXYDIETHANOL
2,2'-ETHYLENEDIOXYETHANOL
3,6-DIOXA-1,8-OCTANEDIOL
DI-B-HYDROXYETHOXYETHANE
ETHYLENE GLYCOL DIHYDROXYDIETHYL ETHER
GLYCOL BIS(HYDROXYETHYL)ETHER
TEG
TRIETHYLENE GLYCOL
TRIGLYCOL
TRIGOL
2,2'-(1,2-Ethanediylbis(oxy))bisethanol
2,2’-(1,2-ethanediylbis(oxy))bis-ethano
2,2’-(1,2-ethanediylbis(oxy))bisethanol
2,2’-(ethylenedioxy)di-ethano
2,2’-[1,2-ethanediylbis(oxy)]bis-ethano
2,2’-[1,2-Ethanediylbis(oxy)]bisethanol
2,2’-[1,2-ethanediylbis(oxy)]bis-Ethanol
2,2’-ethylenedioxybis(ethanol)
2,2'-Ethylenedioxybis(ethanol) | [EINECS(EC#)]
203-953-2 | [Molecular Formula]
C6H14O4 | [MDL Number]
MFCD00002880 | [Molecular Weight]
150.17 | [MOL File]
112-27-6.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless, hygroscopic liquid; practically
odorless. Soluble in water; immiscible with
benzene, toluene, and gasoline. Combustible. | [Melting point ]
−7 °C(lit.)
| [Boiling point ]
125-127 °C0.1 mm Hg(lit.)
| [density ]
1.124 g/mL at 20 °C(lit.)
| [vapor density ]
5.2 (vs air)
| [vapor pressure ]
<0.01 mm Hg ( 20 °C)
| [refractive index ]
n20/D 1.455(lit.)
| [Fp ]
165 °C
| [storage temp. ]
Store below +30°C. | [solubility ]
H2O: 50 mg/mL at 20 °C, clear, colorless
| [form ]
Viscous Liquid | [pka]
14.06±0.10(Predicted) | [color ]
Clear very slightly yellow | [Odor]
Very mild, sweet. | [PH]
5.5-7.0 (25℃, 50mg/mL in H2O) | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents. | [explosive limit]
0.9-9.2%(V) | [Water Solubility ]
SOLUBLE | [Sensitive ]
Hygroscopic | [λmax]
λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.03 | [Merck ]
14,9670 | [BRN ]
969357 | [Dielectric constant]
2.4（25℃） | [InChIKey]
ZIBGPFATKBEMQZ-UHFFFAOYSA-N | [LogP]
-1.75 at 25℃ | [Uses]
triethylene glycol is a solvent prepared from ethylene oxide and ethylene glycol. | [CAS DataBase Reference]
112-27-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Triethylene glycol(112-27-6) | [EPA Substance Registry System]
112-27-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
1
| [RTECS ]
YE4550000
| [Autoignition Temperature]
699 °F | [TSCA ]
Yes | [HS Code ]
29094919 | [Safety Profile]
Poison by intravenous
route. Mildly toxic to humans by ingestion.
Experimental reproductive effects. An eye
and skin irritant. Many glycol ether
compounds have dangerous human
reproductive effects. Combustible when
exposed to heat or flame. Can react with
oxidizing materials. Explosive in the form of
vapor when exposed to heat, flame, or
spark. To fight fire, use alcohol foam, dry
chemical. When heated to decomposition it
emits acrid smoke and irritating fumes. See
also ESTERS and GLYCOL ETHERS. | [Hazardous Substances Data]
112-27-6(Hazardous Substances Data) | [Toxicity]
LD50 in mice, rats (g/kg): 21, 15-22 orally; 7.3-9.5, 11.7 i.v. (Stenger) |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
ETHYLENE OXIDE-->Oxygen-->O1-(DIMETHOXYTRITYL)TRIETHYLENE GLYCOL | [Preparation Products]
Kryptofix 222-->Fmoc-8-amino-3,6-dioxaoctanoic acid-->DIBENZANTHRONE-->NONAETHYLENE GLYCOL MONOMETHYL ETHER-->5-(2-THIENYL)PENTANOIC ACID-->2-[2-(2-CHLOROETHOXY)ETHOXY]ETHANOL-->KRYPTOFIX(R) 221-->2-[2-(2-AMINOETHOXY)ETHOXY]ETHANOL-->Benzoic acid, 2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-4-nitro--->[1,2-ethanediylbis(oxy-2,1-ethanediyloxy)]-bis--->1-(9-MERCAPTONONYL)-3,6,9-TRIOXAUNDECAN-11-OL-->1,8-Diazido-3,5-dioxaoctane-->TRIETHYLENE GLYCOL BIS(CHLOROFORMATE)-->2,5,8,11,14,17-Hexaoxanonadecan-19-ol, methanesulfonate-->HO-PEG3-CH2COOH-->TRIETHYLENE GLYCOL MONO-N-DODECYL ETHER |
| Hazard Information | Back Directory | [Chemical Properties]
Triethylene glycol(112-27-6) is a clear, colorless, viscous, stable liquid with a slightly sweetish odor. Soluble in water; immiscible with benzene, toluene, and gasoline. Combustible. Because it has two ether and two hydroxyl groups its chemical properties are closety related to ethers and primary alcohols. It is a good solvent for gums, resins, nitrocellulose, steam-set printing inks and wood stains. With a low vapor pressure and a high boiling point, its uses and properties are similar to those of ethylene glycol and diethylene glycol. Because it is an efficient hygroscopic agent it serves as a liquid desiccant for removing water from natural gas. It is also used in air conditioning systems designed to dehumidify air.
| [Definition]
ChEBI: Triethylene glycol is a poly(ethylene glycol) that is octane-1,8-diol in which the carbon atoms at positions 3 and 6 have been replaced by oxygen atoms. It has a role as a plasticiser. It is a poly(ethylene glycol), a diol and a primary alcohol. | [Production Methods]
Triethylene glycol, like diethylene glycol, is produced commercially
as a by-product of ethylene glycol production.
Its formation is favored by a high ethylene oxide to water
ratio. | [General Description]
Triethylene Glycol (TEG) is a colorless liquid with a mild odor and is denser than water. It is a member of a series of dihydroxyalcohols. TEG's primary applications are derived from its ability to absorb moisture. It is utilized as a dehydrating agent in natural gas pipelines to eliminate water from the gas before reusing it in the system. Triethylene glycol also has mild disinfectant qualities and, when volatised, is used as an air disinfectant for virus and bacteria control. | [Reactivity Profile]
Triethylene glycol(112-27-6) is a ether-alcohol derivative. The ether being relatively unreactive. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert alcohols to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. Reacts with strong oxidants. [Handling Chemicals Safely 1980. p. 932].
| [Health Hazard]
Under normal conditions of use, Triethylene Glycol (TEG) is not expected to cause irritation to the skin, eyes or respiratory tract. However, in applications where vapours or mists are created, inhalation may cause irritation to the respiratory system.
No ceiling on worker exposure has been set by the American Conference of Governmental Hygienists (ACGIH), neither has a Workplace Exposure Limit been established for TEG. TEG is readily biodegradable, has a low potential to bioaccumulate and has low toxicity to aquatic organisms.
TEG is not flammable, unless preheated. | [Flammability and Explosibility]
Notclassified | [Chemical Reactivity]
Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent. | [Purification Methods]
Dry the glycol with CaSO4 for 1 week, then it is repeatedly and very slowly fractionally distilled under a vacuum. Store it in a vacuum desiccator over P2O5. It is very hygroscopic. [Beilstein 1 IV 2400.] |
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