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Triethylene glycol

CAS No.112-27-6
Chemical Name:Triethylene glycol
CBNumber:CB1698903
Molecular Formula:C6H14O4
Formula Weight:150.17
MOL File:112-27-6.mol

Triethylene glycol Property

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.)
Flash point 165 °C
storage temp. Store below +30°C.
solubility H₂O: 50 mg/mL at 20 °C, clear, colorless
pka 14.06±0.10(Predicted)
form Viscous Liquid
color Clear very slightly yellow
PH 5.5-7.0 (25℃, 50mg/mL in H2O)
Odor Very mild, sweet.
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℃）
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey ZIBGPFATKBEMQZ-UHFFFAOYSA-N
LogP -1.75 at 25℃
Surface tension 44.71 mN/m at 303.15K
Indirect Additives used in Food Contact Substances TRIETHYLENE GLYCOL
FDA 21 CFR 175.105; 175.300; 177.1200; 178.3740; 178.3910
CAS DataBase Reference 112-27-6(CAS DataBase Reference)
EWG's Food Scores 1-4
FDA UNII 3P5SU53360
NIST Chemistry Reference Triethylene glycol(112-27-6)
EPA Substance Registry System Triethylene glycol (112-27-6)
UNSPSC Code 41116107
NACRES NA.25

Safety

Hazard Codes :Xi
Risk Statements :36/37/38
Safety Statements :26-36
WGK Germany :1
RTECS :YE4550000
Autoignition Temperature :699 °F
TSCA :Yes
HS Code :29094919
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)

NFPA 704:

	1
1		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H320
Precautionary statements P264-P305+P351+P338+P337+P313

Triethylene glycol Price More Price(22)

Brand: Sigma-Aldrich(India)
Product number: T59455
Product name : Triethylene glycol
Purity: ReagentPlus?, 99%
Packaging: 25ML
Price: ₹2738.73
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: T59455
Product name : Triethylene glycol
Purity: ReagentPlus?, 99%
Packaging: 1L
Price: ₹3031
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Brand: Sigma-Aldrich(India)
Product number: T59455
Product name : Triethylene glycol
Purity: ReagentPlus?, 99%
Packaging: 2.5L
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Brand: Sigma-Aldrich(India)
Product number: 95126
Product name : Triethylene glycol
Purity: BioUltra, anhydrous, ≥99.0% (GC)
Packaging: 100ML
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Brand: Sigma-Aldrich(India)
Product number: 8.08245
Product name : Triethylene glycol
Purity: for synthesis
Packaging: 1L
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Triethylene glycol Chemical Properties,Usage,Production

Chemical Properties Triethylene glycol 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.
Uses In various plastics to increase pliability; in air disinfection.
Uses triethylene glycol is a solvent prepared from ethylene oxide and ethylene glycol.
Triethylene glycol can be used:
To prepare fatty acid gelators, which are used to gelate various edible and vegetable oils.
As a solvent to prepare superparamagnetic iron oxide nanoparticles for in situ protein purification.
As an absorbent agent in the subsea natural gas dehydration process.
Uses Triethylene glycol is used as a plasticizer, as an additive for hydraulic fluids and brake fluids, and as a disinfectant. It is an active component of certain pigments, printing dyes, inks and paste. It finds application as a liquid desiccant and used in the dehydration of natural gas, carbon dioxide, hydrogen sulfide and air conditioning systems. It plays as an important role in anti-freeze and de-icing products, cleaning and furnishing care products, lubricant and greases.
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 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 Not classified
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.
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.]