MEG / Ethylene Glycol / Monoethylene Glycol CAS 107-21-1

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Product Name:	Ethylene Glycol
CAS No.:	107-21-1
Content:	≥99.5%
Packing:	200kg~230kg/Drum
Hs code	2905310000
Lead Time	7–15 days after payment confirmation
Payment	T/T, L/C at sight
Port of Loading	Tianjin / Qingdao

 

Need ethylene glycol for your production line? Send us your required quantity and destination port, and our team will provide pricing and delivery terms. Request an ethylene glycol (CAS 107-21-1) quotation to get started.

 

 

Monoethylene Glycol (MEG) is an organic compound with the chemical formula (CH₂OH)₂. It is the simplest aliphatic dihydric alcohol and undergoes typical alcohol reactions, including ether and ester formation, oxidation, and substitution reactions.

 

MEG is primarily used as a raw material in polyester fiber production and as a component in antifreeze formulations. At room temperature, it is a colorless, nearly odorless, viscous liquid.

 

 

Purity	≥ 99.5% - 99.9% (industrial grade)
Chemical Formula	HO-CH2-CH2-OH (C2H6O2)
Molecular Weight	62.07 g/mol
HS Code	2905.31
Density (20°C)	1.113 - 1.115 g/mL
Melting Point	-12.9°C
Boiling Point	197.3°C
Chemical Structure
Flash Point	111°C (Closed Cup)
Autoignition Temperature	398°C
Viscosity (20°C)	21 cP
Solubility	Miscible with water, alcohols, and many organic solvents
Refractive Index (20°C)	1.431 - 1.432
Vapor Pressure (20°C)	0.06 mmHg

 

Want to review batch data before ordering? You can request the monoethylene glycol (meg) COA, SDS and TDS for your quality assessment.

 

 

Monoethylene Glycol (MEG) is mainly used in polyester production, antifreeze, industrial cooling systems, natural gas processing, and chemical manufacturing.

 

Polyester Fiber and PET Production

MEG reacts with PTA or DMT to produce polyester fibers, PET bottles, and packaging films. High-purity MEG is preferred for consistent product quality

 

Antifreeze and Engine Coolants

MEG is mixed with water to lower the freezing point in automotive cooling systems. Finished coolant formulations also contain corrosion inhibitors.

 

Industrial Heat Transfer Fluids

MEG-water mixtures are used in industrial cooling and heat transfer systems to provide freeze protection and temperature control.

 

Natural Gas Processing

MEG is used in natural gas pipelines to prevent gas hydrate formation, particularly in offshore operations.

 

Chemical Manufacturing

MEG is used to manufacture polyester resins, certain plasticizers, and glycol derivatives.

 

 

 

Packaging: 200 kg/drum. Customized packaging is available upon request.

Storage: Store in tightly closed containers in a cool, dry, well-ventilated area, away from direct sunlight.

 

 

 

Trusted by buyers in multiple countries since 2021 - Tianjin Gnee Biotech Co., Ltd. is a professional chemical raw material manufacturer based in China, with REACH registration, full COA/SDS documentation, and ISO-compliant quality control for every batch.

 

Our best-selling products include Dichloromethane (DCM), Acetic Acid, Ethyl Acetate, Methanol, Butanol, Acetonitrile (ACE), Dimethyl Sulfoxide (DMSO), Isopropanol (IPA), p-Xylene, Cyclohexanone, and more.

 

 

 

What is the difference between ethylene glycol and monoethylene glycol?

Ethylene glycol and monoethylene glycol refer to the same compound, CAS 107-21-1. The term MEG is commonly used to distinguish it from diethylene glycol (DEG) and triethylene glycol (TEG).

 

What is the typical purity of industrial MEG?

Commercial MEG is available in different grades. Buyers should confirm the minimum assay and impurity limits through the supplier's current specification and COA.

 

Is monoethylene glycol soluble in water?

Yes. Monoethylene glycol is completely miscible with water, making it suitable for antifreeze and glycol-based heat-transfer formulations.

 

What is the boiling point of MEG?

Pure monoethylene glycol has a normal boiling point of approximately 197.3°C.

 

Can MEG be used directly as engine coolant?

Pure MEG is a coolant ingredient, not a complete inhibited coolant formulation. Finished coolant products require appropriate additives and concentration control.

 

What specifications matter for polyester-grade MEG?

Polyester manufacturers commonly evaluate purity, water content, acidity, color and DEG content, along with other application-specific requirements.

 

Can I request a COA before ordering?

Yes. Buyers can request available product specifications and a recent COA for review before confirming a purchase.

 

How can I get an MEG price quotation?

Provide the required grade, order quantity, packaging preference, destination port and delivery terms so the supplier can prepare an appropriate quotation.

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