Ethylene Glycol
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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Mono Ethylene GlycolOur Mono Ethylene Glycol (MEG, CAS 107-21-1) is a top-tier, crystal-clear industrial chemical produced at our ISO/IEC 17025-accredited and EcoVadis Gold-rated facility. With ≥99.95% purity and...read more
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Ethylene Glycol SigmaOur Ethylene Glycol Sigma (EG, CAS 107-21-1) is a dual-certified analytical/industrial-grade chemical, formulated to exceed Sigma-Aldrich® equivalency standards and ISO 17034 reference material...read more
Why choose us
Strict Quality Control
Regular sampling and testing during production help identify any potential quality deviations. Final products undergo rigorous performance and safety tests before delivery. All measures adhere to international quality management standards, ensuring that customers receive only first-class chemical products.
Advanced Facilities
A dedicated R&D laboratory is equipped with sophisticated analytical instruments, enabling our R&D team to conduct in-depth research, develop new formulas, and optimize existing products.
Certificates and Documents
- SGS (Swiss General Standards)
- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
Our Services
We offer free returns and exchanges for quality issues within 30 days, provide SGS inspection reports, and offer long-term discounts to loyal customers.

Ethylene glycol is colorless and transparent liquid, is the simplest of diglycol.
Can be intersoluble with water and acetone, slightly soluble in ether, and insoluble in petroleum hydrocarbon and oil.
It can dissolve calcium chloride, zinc chloride, sodium chloride and other inorganic substances.
Product Name: Ethylene Glycol, Mono ethylene glycol, MEG,EG
Other Name: Glycol, 1,2-Ethanediol.
Purity: 99% 99.8%
Molecular formula: HOCH2CH2OH, (CH2OH)2
Molecular Weight: 62.07
Cas No.: 107-21-1
EINECS No: 203-473-3
Certificate of Analysis
|
Comm |
Monoethylene Glycol(Polyester grade)MEG |
|
|
Items |
Standard |
Result |
|
Appearace |
Colorless, transparent no visible impurities |
|
|
Purity,w/% |
99.9min |
99.97 |
|
Diethylene glycol Content,w/% |
0.05max |
0.008 |
|
Density(20ºC),g/cm3 |
1.1128~1.1138 |
1.1134 |
|
Boiling range:first slipºC dry pointºC |
196min |
197.2 |
|
199max |
197.8 |
|
|
Water Content,w/% |
0.08max |
0.01 |
|
Acidity (as Acetic acid),mg/kg |
10max |
6 |
|
Iron content (asFe),mg/kg |
0.1max |
0.02 |
|
Ash content,mg/kg |
10max |
1 |
|
Aldehyde content (as formaldehyde), mg/kg |
8max |
4.1 |
|
Chroma (PT CO) (before heating) |
5max |
5 |
|
Degree (PT CO) (after heating HCL) |
20max |
10 |
|
UV transmittance: UV transmittance (220nm),% UV transmittance (250nm),% UV transmittance (275nm),% UV transmittance (350nm),% |
75min |
92 |
|
Report |
97 |
|
|
92min |
99 |
|
|
99min |
100 |
|
|
Chloride ionmg/kg |
0.5max |
<0.5 |
Product Features and Advantages
High-efficiency antifreeze performance
The freezing point is as low as -13 °C in pure form and can be reduced to below -40 °C when mixed with water. It is the main component of automotive antifreeze.
01
Key monomer for polyester synthesis
Reacts with terephthalic acid (PTA) to produce polyester (PET), which is used in the manufacture of fibers, bottle-grade chips, and films.
02
Chemical stability
Resistant to high temperatures and oxidation, making it suitable for long-term storage and high-temperature applications.
03
High purity and consistency
Available in industrial and high-purity grades to meet the requirements of various industries (e.g., electronic-grade material used in lithium battery electrolytes).
04
Environmental compatibility
Recyclable and aligned with the development trend of the green chemical industry.
05
Product application
Used for production of polyester, moisture absorbent, plasticizer, surfactant, synthetic fiber, cosmetics and explosives, production of alkyd resin, glyoxal, etc.;
Used as refrigerant, condensing agent, refrigerating agent for industrial cooling, as well as raw materials for synthetic polyester, and used as gas dehydrating agent, making resin, etc.;
Solvent and thinner for printing ink, industrial cleaning agent, coating, printing and dyeing etc.; As electrolytic capacitor electrolyte, making chemical fiber dyes and so on.
Storage Environment:
Store in a closed container; avoid light and high temperatures (recommended temperature ≤ 30 °C).
The storage area should be fireproof, moisture-proof, and isolated from strong oxidants.
Maintain good ventilation to prevent vapor accumulation.
Shelf Life:
Under unopened conditions, the shelf life is 24 months.
Transportation Requirements:
Transport as general chemicals, avoiding strong vibrations and high-temperature exposure.
In some countries, the "hygroscopic liquid" label is required, and shipping must comply with IMDG regulations.

Safety and Operation Specifications
Toxicity Warning
Glycol is toxic to the central nervous system and kidneys. Direct contact or ingestion is strictly prohibited.
Operational Protection
Wear chemical-resistant gloves, goggles, and a gas mask. The operating area should be equipped with eyewash and emergency shower facilities.
Leakage Treatment
Cover the spill with sand or inert absorbent material, then collect and dispose. Rinse the contaminated area with a large amount of water.
Waste Management
Waste must be handled by a certified organization in accordance with hazardous chemical disposal regulations.
Packaging & Shipping
We have various of packages for different products and we are always pleased to satisfy customers' request.
Packaging:
180kg*80 drums,14.4ton/20'FCL;
180kg*140 drums,25.2ton/40'FCL;
900KG*20 IBC drums,18mt/20'FCL;
22ton/ISO TANK.
Shipping:
Promote shipping usually 7--14 days after receiving TT deposit or LC Original .
Certificates and Documents




As one of the leading ethylene glycol manufacturers and suppliers in China, we warmly welcome you to wholesale bulk ethylene glycol for sale here and get pricelist from our factory. All chemicals are with high quality and low price.
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