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Construction Chemistry
MEG (Monoethylene Glycol)
Formula:
C₂H₆O₂
GOST/CAS:
ГОСТ 19710-2019 / CAS 107-21-1
Monoethylene glycol (ethane-1,2-diol; MEG) is the simplest representative of polyhydric alcohols. It is a clear, colorless, syrupy, odorless liquid that is highly hygroscopic and infinitely miscible with water. MEG serves as a key base chemical monomer for the large-scale production of polyester fibers, plastics (including PET), as well as high-performance cooling fluids and antifreezes. Due to its unique ability to significantly lower the freezing point of aqueous solutions, this product is indispensable in thermal power engineering, the automotive industry, and industrial chemical manufacturing.
Applications
Paints, Coatings, and Polymers: Utilized as an essential anti-freeze additive in water-borne paints, varnishes, and primers. It prevents coagulation and product spoilage during freeze-thaw cycles during winter transportation and storage.
Construction Chemicals and Mortars: Applied as a frost-resistant modifying additive for concrete, cement mortars, dry plasters, and adhesives. It improves workability and extends the "open time" of ready-to-use compounds.
Heating and Cooling Systems: Serves as the primary base fluid for formulating low-freezing heat transfer fluids (antifreezes) used in HVAC systems of residential, commercial, and industrial buildings.
Resin Synthesis: Used as a vital raw material in organic synthesis for manufacturing polyester resins, alkyd resins, and polyurethanes, which are widely utilized across the construction industry.
Key Advantages
Excellent Frost Resistance: Effectively depresses the freezing point of water solutions (down to -70C at specific concentrations), ensuring the integrity and stability of coatings and construction mortars during winter.
Open-Time Regulation: Slows down the evaporation rate of water from applied construction or paint formulas, helping to eliminate visible joints and preventing the work surface from drying out too quickly.
Universal Compatibility: Mixes flawlessly in any proportion with water, alcohols, and most organic compounds without disrupting the stability of disperse systems or pigments.
Hygroscopicity and Moisture Retention: Prevents skinning (crust formation) on the surface of mortars and paints inside the packaging, extending the shelf life of the product after the container has been opened.
Storage & Transportation
- Store in hermetically sealed tanks made of stainless steel or aluminum, or in original manufacturer packaging. Keep in dry, unheated, well-ventilated warehouses equipped with supply and exhaust ventilation.
- Avoid direct sunlight, moisture exposure, and joint storage with strong oxidizing agents and acids, as the product is highly hygroscopic.
- The product is a combustible and toxic liquid (Hazard Class 3 based on its impact on the human body). All handling must be performed strictly using Personal Protective Equipment (PPE).
- Transportation is permitted by all modes of covered transport (rail, road) in full compliance with the dangerous goods transportation regulations applicable to each transport mode. Guaranteed shelf life is 1 year from the date of manufacture.
Frequently bought together
Technical Specifications
Appearance
Clear, homogeneous liquid free from mechanical impurities
Molecular Weight
~62.07 g/mol
Mass Fraction of Monoethylene Glycol
min. 99.5% (for premium grade)
Mass Fraction of Diethylene Glycol
max. 0.05%
Density at 20°C
1.111 – 1.116 g/cm³
Mass Fraction of Water
max. 0.1%
Color in Hazen Units (Platinum-Cobalt Scale)
max. 5 (in as-received state)
Supply info
- Bulk delivery via railway tank cars, tank containers, and tank trucks.
- Industrial metal or plastic Intermediate Bulk Containers (IBC totes) with a capacity of 1000 L.
- Hermetically sealed steel or polyethylene drums of 216.5 L (net weight ~220–230 kg).