Monoethylene Glycol (MEG) — CAS 107-21-1
Raw material for the manufacture of heat transfer fluids and industrial antifreeze products
The monoethylene glycol (MEG) — CAS 107-21-1 — is a colorless, hygroscopic, low-volatility liquid, widely used as a base in the manufacture of heat transfer fluids, antifreeze products, and thermal fluids.
Thanks to its strong affinity for water and its high boiling point, it is an essential component in heat transfer systems and industrial formulations requiring freeze protection.
DESCRIPTION
MEG (dihydroxyethane) is fully miscible with water, as well as with alcohols, aldehydes, ketones, and esters, making it a versatile chemical intermediate.
In the thermal field, it is used as a raw material for the formulation of heat transfer fluids and antifreeze products for heating, air conditioning, industrial cooling, and energy systems.
It is also used as an intermediate in the production of resins and solvents, and in the manufacture of PET (polyethylene terephthalate).
ADVANTAGES
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Excellent miscibility with water.
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Effectively lowers the freezing point.
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High boiling point.
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Good heat transfer properties.
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Stable in aqueous formulations.
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Recognized raw material in the thermal industry.
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Suitable for industrial antifreeze formulations.
APPLICATIONS
Manufacture of heat transfer fluids:
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Heating circuits.
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Air conditioning systems.
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Industrial equipment.
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Heat transfer networks.
Antifreeze manufacturing:
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Industrial antifreeze products.
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Cooling fluids.
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Hydraulic systems exposed to cold.
Other industrial uses:
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PET production.
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Textile fiber manufacturing.
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Chemical intermediate for resins and solvents.
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Natural gas dehydration.
FUNCTIONS
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Freezing point depression.
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Improved thermal stability.
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Efficient heat transmission.
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Protection of circuits against freezing.
SECTORS OF ACTIVITY
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Thermal industry.
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HVAC engineering.
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Chemical industry.
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Industrial maintenance.
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Manufacturers of heat transfer fluids.
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Petrochemical industry.
GENERAL TECHNICAL PROPERTIES
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CAS: 107-21-1
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Appearance: Colorless liquid
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Hygroscopic
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Miscible in water
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Low volatility
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High boiling point
Detailed technical data are available upon request or via the SDS.
COMPATIBILITY
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Aqueous formulations.
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Closed thermal systems.
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Cooling circuits.
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Industrial heating systems.
Testing is recommended depending on the inhibitors and additives used.
SAFETY / COMPLIANCE
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For professional use only.
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Refer to the Safety Data Sheet (SDS).
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Comply with local storage and handling regulations.
APPLICATION METHOD
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Dilute in water according to the desired level of freeze protection.
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Add the corrosion inhibitors appropriate for the circuit.
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Check compatibility with the system's materials (seals, metals).

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