CAS No. 107-21-1 | Formula: C₂H₆O₂

Ethylene Glycol Supplier

We provide premium-grade EG with purity exceeding 99.5%, sourced from state-of-the-art production facilities. Our global supply chain ensures timely delivery, competitive pricing for orders starting at 20 metric tons, and customized solutions to meet your specific industrial needs. Whether you’re in petrochemicals, automotive, or textiles, our EG enhances efficiency and reduces operational costs.

GNEE BIO

Ethylene Glycol Manufacture & Supplier

We are a professional ethylene glycol supplier, providing you with high-purity anhydrous ethylene glycol that is low in DEG, low in color, and has polyester-grade stability. We offer a full set of certifications, support third-party inspection, use cryogenic protective packaging, and offer stable and fast multi-port combined shipping!

Item	Description
Product Name	Ethylene Glycol
Synonyms	Mono Ethylene Glycol, MEG, Glycol
Chemical Formula	C₂H₆O₂
Molecular Weight	62.07 g/mol
CAS Number	107-21-1
Chemical Type	Diol (Alcohol)
Appearance	Colorless, Clear Liquid
Odor	Odorless Or Slightly Sweet

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Overview Of High Purity Mono Ethylene Glycol

Ethylene glycol (Mono Ethylene Glycol, MEG), chemical formula C₂H₆O₂, CAS No. 107-21-1, is a colorless, viscous liquid at room temperature, with a boiling point of approximately 197–198°C, a melting point of approximately -13 to -10°C, and a density of approximately 1.11 g/cm³. As a core raw material for polyester (PET/fiber) and antifreeze, MEG is a basic intermediate in the chemical industry chain, readily soluble in water and exhibiting good chemical stability.

Our Ethylene Glycol products strictly comply with international standards, meeting the requirements for use in high-temperature, complex climates, and harsh industrial environments. They are widely used in polyester, resin, cooling systems, antifreeze, industrial solvents, and chemical synthesis.

As a leading global manufacturer and exporter of ethylene glycol, we focus on providing high-purity ethylene glycol to B2B customers who purchase in bulk:

Stable quality industrial-grade/polyester-grade ethylene glycol

Flexible packaging and delivery solutions

Sustainable long-term supply partnerships

Basic Product Information

Item	Description
Product Name	Ethylene Glycol
Synonyms	Mono Ethylene Glycol, MEG, Glycol
Chemical Formula	C₂H₆O₂
Molecular Weight	62.07 g/mol
CAS Number	107-21-1
HS Code	29053100
Chemical Type	Diol (Alcohol)
Appearance	Colorless, Clear Liquid
Odor	Odorless Or Slightly Sweet
Classification	Industrial Chemical Raw Material

Typical Technical Specifications

Parameter	Unit	Typical Value
Purity (Ethylene Glycol)	wt%	≥ 99.5
Water Content	wt%	≤ 0.2
Acidity (As Acetic Acid)	wt%	≤ 0.005
Ash Content	wt%	≤ 0.01
Aldehydes (As Formaldehyde)	ppm	≤ 10
Chloride (Cl⁻)	ppm	≤ 5
Iron (Fe)	ppm	≤ 1
Color (APHA)	—	≤ 10
Density @20°C	g/cm³	1.113 ± 0.003

Basic Physical Properties (20–25°C unless noted)

Physical Properties

Property	Unit	Value
Physical State	—	Liquid
Color	—	Colorless
Melting Point	°C	-12.9
Boiling Point	°C	197.3
Flash Point (Closed Cup)	°C	111
Auto Ignition Temperature	°C	~398
Vapor Pressure @20°C	kPa	< 0.01
Density @20°C	g/cm³	1.113
Viscosity @20°C	mPa·s	~16.1
Heat Capacity @20°C	J/(g·K)	~2.4

Solubility & Compatibility

Substance	Solubility
Water	Completely Miscible
Alcohols	Miscible
Acetone	Miscible
Ethers	Slightly Soluble
Hydrocarbons	Poorly Soluble
Oils	Poorly Soluble

Thermal Properties

Parameter	Unit	Typical Value
Freezing Point	°C	-12.9
Boiling Point	°C	197.3
Thermal Conductivity @25°C	W/m·K	~0.25
Specific Heat Capacity	J/g·K	~2.4
Expansion Coefficient	1/°C	5.7 × 10⁻⁴

Chemical Stability & Reactivity

Item	Description
Chemical Stability	Stable Under Normal Conditions
Reactivity	Reacts With Strong Oxidizers
Decomposition Products	CO, CO₂ Under High Temperature
Polymerization	Will Not Occur
Hygroscopicity	Hygroscopic (Absorbs Moisture)
Corrosiveness	Non-Corrosive To Steel

Packaging Options

Packaging Type	Typical Net Weight
Steel Drum	200–225 kg
Plastic Drum	200–220 kg
IBC Tank	1000–1100 kg
ISO Tank	Bulk Liquid
Flexitank	20–24 MT

Storage & Handling Conditions

Item	Recommendation
Storage Temperature	Ambient
Storage Environment	Dry, Well Ventilated
Recommended Containers	Carbon Steel, Stainless Steel
Shelf Life	Minimum 24 Months
Moisture Control	Keep Containers Tightly Closed
Handling Precautions	Avoid Prolonged Skin Contact

Safety & Regulatory Information

Item	Description
UN Number	UN 3082 (Environmentally Hazardous, Liquid) *
Transport Class	Not Classified As Dangerous By IMO
GHS Classification	Acute Toxicity (Oral) Cat. 4
Safety Data Sheet	Available (SDS / MSDS)
Environmental Impact	Biodegradable
REACH Status	Registered / Exempt

Quality Inspection & Testing

Inspection Item	Method
Purity	Gas Chromatography
Water Content	Karl Fischer
Color	APHA
Density	ASTM D4052
Acidity	Titration
Metal Content	ICP / AAS

Advantages And Properties Of Ethylene Glycol

Our company offers ethylene glycol not just as a chemical, but as a complete solution that combines superior quality, reliable supply, in-depth technical support, and sustainable value. For B2B customers, choosing us means choosing a partnership that reduces supply chain risks, improves production efficiency, ensures stable product quality, and provides ongoing technical support.

High Hygroscopicity

Highly hygroscopic, requires airtight storage to prevent moisture buildup from affecting applications.

Excellent Solubility

Miscible with most polar solvents, making it an excellent solvent and carrier.

Strong Freezing Point Degradation

Forms an azeotropic solution with water, suitable for antifreeze and cooling systems.

Good Thermal and Chemical Stability

Stable under most industrial application conditions.

Low Volatility and Low Odor

Beneficial for odor control in automotive and household formulations.

Low Corrosivity (under formulation conditions)

It can provide protection for metal systems when combined with a suitable corrosion inhibitor system.

High Purity, Low By-product Control

Typical purity ≥99.8% (polyester grade option available), controllable DEG, low color, minimal batch-to-batch variation, reducing polyester yellowing and end-product defect rates.

All batches come with a Certificate of Analysis (COA), with optional third-party (SGS/BV/Intertek) witnessed sampling inspections to ensure verifiable and accurate indicators.

Stable Polymerization and Formulation Performance

Polyester Performance: Favorable for molecular weight control, transparency, and tensile properties; low metal ion solutions and filtration recommendations can be provided.

Antifreeze Performance: Stable freezing point profile, predictable thermal conductivity and viscosity-temperature characteristics; supports aluminum-copper compatible inhibitor systems.

Cleanliness and Impurity Management

Moisture, ash, metal ions, and particulate matter are controlled below critical thresholds; cleaning certificates and seal traceability are provided to reduce the risk of secondary contamination.

Direct Production, Competitive Pricing: As a direct manufacturer, eliminating intermediaries, we can offer highly competitive prices to bulk purchasing customers.

Scalability and Stable Supply: With a monthly production capacity of 40,000 tons, we can handle long-term, large-volume orders and mitigate supply risks from market fluctuations, making us a reliable supplier for our clients.

Provides a full set of certifications

MSDS/TDS/COA, Certificate of Origin, IMDG/Dangerous Goods Classification, SASO/SONCAP and other destination country documents are all available, reducing customs clearance uncertainties.

Customizable Grades and Formulations

Multiple grades are available in parallel: industrial grade, polyester grade, low DEG control grade, and antifreeze base grade; customized settings (such as moisture content, acid value, and color targets) are provided for specific equipment or processes.

High-purity, stable supply down to polyester grade: Meets the stringent requirements for low aldehydes, low metals, and low color in PET, PSF/POY/FDY, and resin production.

Customizable Specifications: Offers differentiated technical specifications for niche industries such as oil fields, heat transfer fluids, and high-end electronic chemicals.

Process Traceability: Full-process traceability from upstream raw materials and distillation processes to COA delivery, ensuring batch consistency.

Multi-country Compliance and Certifications: Provides REACH registration support, hazard notification documents, RoHS/PAHs/heavy metal compliance disclosures, etc.

ISO Tank Container Recycling and Destination Port Transfer

Closed-loop delivery primarily using tank containers reduces moisture absorption and cross-contamination; at the destination port, transfer to IBC/steel drums is possible, adapting to different storage conditions and last-mile distribution.

Visualized Delivery Time

Regular orders ship within 7–18 days, arrive at port within 22–35 days (depending on shipping route and port); provides milestone tracking and anomaly alerts from order placement to shipment, arrival, and delivery.

Third-Party Quality Inspection and Arrival Re-inspection

Third-party sampling inspections can be arranged before shipment and at the port; local re-inspection is supported upon arrival, comparing with the COA (Code of Assessment), and providing retesting and replacement solutions within 48 hours for any anomalies.

Applications Of Mono Ethylene Glycol

Ethylene glycol (MEG) is primarily used in the production of polyester (PET bottle materials, fibers, and films); secondly, it serves as an antifreeze/cooling medium in automotive engines and HVAC systems; it is also frequently used as a high-boiling-point solvent and chemical raw material in the formulation of unsaturated polyesters, polyurethanes, and other resins; in oil and gas and industrial low-temperature applications, it can be used as a hydrate inhibitor or secondary refrigerant.

Polyester Industry

PET Resin (Bottle Grade/Fiber Grade/Film Grade)
Esterification/polymerization with terephthalic acid (PTA) or dimethyl terephthalate (DMT) produces PET.

Antifreeze/Coolant

Light/Heavy-duty engine coolant
HVAC and industrial closed-loop cooling/heating
Applications: Chilled water systems, ground source heat pumps, secondary refrigerants.

Chemicals and Solvents

Solvents/Cosolvents： Used as high-boiling-point polar solvents in coatings, inks, resins, and cleaning agents to improve leveling and film formation.

Polyurethane and Resins

Chain extenders or polyol components in flexible foams/elastomers
Unsaturated polyester resin (UPR)
Participating in the synthesis as a polyol monomer

Textile and Leather Processing

Solvents/moisturizing factors in spinning oils, lubricants, and wetting agents. Improves dye solubility and penetration, aiding in level dyeing.

Electronic Cleaning Semiconductors

High-boiling-point solvents or cleaning system components in electronic chemical formulations. Thermal Management: Secondary refrigerant in certain test benches and liquid cooling circuits.

Building and Heating

Underfloor heating, solar collector circulating fluid. Winter Freeze Protection and Insulation: Temporary freeze protection systems for concrete construction.

Mining and Oil & Gas

Natural gas hydrate inhibitor. A dehydrating agent/solvent used in downhole and surface processes, subsequently recovered and recycled.

Compliance Statement: We do not directly target C-end pharmaceutical end-use applications. B-end clients must ensure compliance with usage and registration pathways.

Why choose Gnee BIO?

Gnee BIO boasts over 26 senior technical personnel, 15 laboratory staff, and an operations and sales team of more than 80 people. Our factory employs advanced continuous production processes to ensure product quality stability and batch consistency.

Our production capacity can meet the needs of large customers exceeding 5,000 tons per month, guaranteeing a long-term stable supply unaffected by market fluctuations.

Factory Strength

Owned/jointly-owned factories, continuous production lines and automated DCS control
ISO ISO 9001/14001/45001 certified; some units managed according to GMP requirements.
Complete EHS system and hazardous chemical management, adhering to REACH (EU), K-REACH, and Taiwan TSCCA compliance pathways.
Expandable annual capacity; peak season production scheduling mechanism; green channel for urgent orders.

Quality Control and Traceability

Three-level quality control from raw materials to process to finished products; online GC and KF automatic moisture monitoring. Each batch’s COA includes GC spectrum/metal ion/color/UV, etc. Sample and retention system; batch traceability to key process parameters.

Global Logistics and Localized Services

Partnering with top shipping companies/freight forwarders/customs brokers, offering multiple trade terms including FOB/CIF/CFR/DDU/DDP. Experienced in South America (e.g., Brazil, Chile), the Middle East (UAE), Africa (South Africa, Egypt), and Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia, Philippines). Multilingual services available (English/Spanish/Portuguese/Arabic/French/Indonesian/Vietnamese/Thai).

Direct Manufacturer

Product Quality Assurance

Supply Chain and Delivery

R&D Capabilities

Quality and Compliance

Technical Services

Who We Are

We are a professional team specializing in fine chemicals, basic chemicals, specialty chemicals, and functional materials. We serve clients in the pharmaceutical intermediates, electronic chemicals, coatings and adhesives, new energy, water treatment, and agrochemical industries, providing integrated solutions from formulation development to large-scale production.

Team Composition

We have approximately 280 employees, including 26 in R&D, 125 in production and EHS, 14 in quality, 45 in supply chain and operations, and 35 in business and customer success. Our core leadership team has 23 years of experience in the chemical industry and possesses extensive knowledge of chemical products. Feel free to contact us for consultation.

Mission and Vision

To bring chemical products to market more safely, efficiently, and environmentally friendly, becoming a trusted partner in our respective niche markets.

Gnee BIO

FAQ

Need help? We’re happy to assist you!
Please feel free to contact us for free samples and services!

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What is the Minimum Order Quantity (MOQ)?

Standard MOQ is 1 ton; Electronic grade/special customized grade MOQ may be 2–5 tons; Full container load (FCL) or ISO tanks enjoy better pricing.

Can you provide samples?

We can provide 1–5 kg industrial samples for experimental verification, freight collect or credited to the first order. Electronic grade samples are managed according to the application process.

How long is the delivery time?

In-stock items ship within 3–7 days; customized specifications are scheduled for production within 7–15 days; sea freight delivery time depends on the destination port and route (Asia 7–15 days, Middle East 15–25 days, Africa/South America 25–45 days for reference).

How to ensure no crystallization in winter?

We provide insulated packaging, heating belts, or winter temperature control solutions, and provide temperature records during transportation (optional).

How to control metal ions and moisture?

High-purity raw materials, inert material contact, online drying and clean filling are used; electronic-grade processes are completed in a clean area and packaged in special containers.

Our Services

Our production capacity can meet the needs of large customers exceeding 5,000 tons per month, guaranteeing a long-term stable supply unaffected by market fluctuations.

Pre-sales and Technical Support

Product Selection Recommendations: Providing product solutions based on application scenarios.

Technical Documentation Provision: TDS (Technical Data Sheet), SDS (Safety Data Sheet), COA sample, process guidelines, etc.

Sample Support: Providing free samples, standard tests, and application experiment reports.

Technical Exchange: Joint process review window, PHA/HAZID recommendations.

Ask about custom services

Customization and R&D Services

Custom Synthesis/Formulation Development (CRO/CMO/CDMO): Customizing purity, impurity profiles, particle size, color, stability, etc., according to specifications.

Process Optimization and Scale-up: Designing pilot-scale to mass production routes, yield and cost optimization, green alternatives and solvent recycling solutions.

Joint Development and Application (JDA): Jointly defining target specifications, validation methods, and milestones with clients; IP/confidentiality clauses can be customized.

Ask about custom services

Quality and Compliance Support

Quality System Integration: Sharing and auditing cooperation on ISO 9001/14001/45001 documents.

Incoming and Outgoing Inspection: Batch-by-batch COA, sample retention management, and accompanying testing methods (GC/HPLC/ICP, etc.).

Change Management (MOC): Advance notification and revalidation support for changes to raw materials, processes, equipment, production lines, locations, etc.

Certification: SGS/CE/REACH, RoHS, hazardous chemical classification and transportation compliance.

Ask about custom services

Production and Supply Chain Services

Capacity and Delivery Commitment: Flexible production scheduling, VMI/safety stock, JIT supply, long-term framework agreements.

Packaging and Label Customization: IBC/drum/small packaging, liner/valve material selection, multilingual labels and QR code traceability.

Logistics and Temperature Control: Ambient temperature/cold chain/insulated transportation, hazardous materials classification transportation solutions and customs clearance support.

Export and Documentation: Commodity inspection, certificate of origin, MSDS, TDS, COA, SOP, test reports, packing lists and bills of lading services.

Ask about custom services

After-sales Service and Continuous Improvement

Customer Complaint Handling and Technical Support SLA: Timely response, closed-loop technical support.

Regular Business Review (QBR): Quality indicators (PPM, OTD), cost optimization, carbon reduction and ESG collaborative projects.

Third-Party Inspection Support: Supports third-party inspections such as SGS/BV, with full traceability of the inspection process.

Ask about custom services