Triethylene Glycol, identifiable by CAS 112-27-6, functions as a powerful liquid desiccant used primarily for the dehydration of natural gas to prevent pipeline corrosion and hydrate formation. Chemically defined as 2,2'-(Ethylenedioxy)diethanol, this colorless, odorless, hygroscopic liquid serves as an air sanitizer in aerosol formulations and a plasticizer in vinyl polymers. The substance, often referred to as TEG or Triglycol in petrochemical engineering, acts as a solvent for nitrocellulose and a humectant in printing inks due to its high boiling point and low volatility. We facilitate bulk supply of this industrial glycol with competitive factory pricing, capable of meeting customized specifications for purity (99.5% min) and color, backed by comprehensive MSDS, TDS, COA documentation.
Triethylene Glycol CAS 112-27-6
- CAS: 112-27-6
- Synonyms: Triethylene glycol, TEG, Trioxaundecane diol, 2,2'-Oxydiethanol
- Einecs: 203-953-2
- Molecular Formula: C6H14O4
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Triethylene glycol
Alias: triethylene glycol, triethylene glycol
Molecular Weight: 150.17
CAS No: 112-27-6
Specification Appearance: Colorless, odorless, hygroscopic viscous liquid
Melting point： -4.3°C, should be -7°C
Boiling point： 289.4°C (101.3kPa), 134°C (0.267kPa),
relative density (15°C)： 1.1274,
refractive index： 1.4578 (15°C),
flash point ：177°C (closed cup)/196°C (open cup)
Ignition point： 412.8°C, vapor pressure 1Pa (20°C).
Viscosity: 49.0 mPa.s (20°C).
Surface tension: 45.2 mN/m (20°C)
Chemical properties: alcohol. Properties of ethers.
Solicitability：It can be miscible with water, ethanol, benzene and toluene, insoluble in ethers, and insoluble in petroleum ethers. Hygroscopic. It has oxygen atoms and hydroxyl groups linked to alkyl groups, so it has the properties of alcohols and ethers.
Solubility (soluble in triethylene glycol %): carbon tetrachloride ~41%, tetrachloroethylene ~18%, toluene ~33%,
Toxicological data: Slightly toxic. LD50 (rat oral) 16.8ml/kg. It is not irritating to the eyes and skin.
Uses：as solvents, extractants, desiccants. It is also used in printing inks as a hygroscopic agent and softener.
It can be used as a disinfectant in air conditioning system cleaners.
It is a good substitute for diethylene glycol (diethylene glycol), which is more environmentally friendly and safe than diethylene glycol (diethylene glycol).
Triethylene glycol has a lower lipophilic hydrobate value (HLB value) than diethylene glycol, so it is relatively lipophilic.
FAQ - Technical & Supply Chain
-
Q:
Is this glycol suitable for natural gas dehydration systems?
A: Triethylene Glycol is typically applied as the industry standard liquid desiccant in natural gas contactors because its high boiling point allows for effective water removal and easy regeneration without significant thermal degradation. -
Q:
Is Triethylene Glycol chemically distinct from Diethylene Glycol?
A: Yes, Triethylene Glycol (CAS 112-27-6) contains three ethylene glycol units linked by ether bonds, giving it a higher boiling point and lower volatility compared to Diethylene Glycol (CAS 111-46-6).
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
