Chemical laboratory

Ethylene Glycol Semiconductor

High-Purity Chemical for Industrial Applications

  • CAS 107-21-1
  • Formula C₂H₆O₂
  • Flash Pt 111 °C
  • Density 1.1132 g/cm³
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Physical & Chemical Properties

Property Value Unit
Boiling point 197.3 °C °C
Flash point 111 °C °C
Density 1.1132 g/cm³ g/cm³
Solubility Miscible with water -
Ph 6.0-7.5 (500 g/L H₂O, 20°C) -
Molecular weight 62.07 g/mol g/mol
Melting point -13 °C °C
Vapor pressure 0.06 mmHg at 20°C mmHg
Autoignition temp 410 °C -
Appearance Clear, colorless liquid -
Odor Odorless -
Vapor density 2.14 (air = 1) g/cm³

Overview

Ethylene Glycol Semiconductor (CAS 107-21-1) is a high-purity, clear, colorless liquid with the molecular formula C₂H₆O₂. This versatile diol compound features excellent solubility in water, a molecular weight of 62.07 g/mol, and maintains stability across a wide temperature range with a boiling point of 197.3°C and melting point of -13°C. Its odorless nature and neutral pH range of 6.0-7.5 make it suitable for demanding industrial applications where purity and consistency are critical.

Key Applications

Our ethylene glycol semiconductor grade serves multiple industrial sectors with exceptional performance characteristics. In automotive applications, it functions as a premium antifreeze and coolant, providing superior freeze protection and heat transfer properties in radiator systems. The textile industry relies on this compound for the production of polyester fibers and films, where its high purity ensures consistent polymer quality. As a chemical intermediate, it serves as a building block for various synthetic processes, while its excellent solvent properties make it valuable in formulations requiring complete water miscibility. Additionally, it acts as an effective hydrate inhibitor in industrial processes and serves as a reliable laboratory reagent for analytical applications.

Safety & Handling

Ethylene Glycol Semiconductor requires careful handling due to its flash point of 111°C and autoignition temperature of 410°C. Always use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing when handling this material. Ensure adequate ventilation in work areas, as the vapor density is 2.14 times heavier than air. Keep away from heat sources, sparks, and open flames. In case of skin contact, wash immediately with soap and water. Store in a well-ventilated area and maintain good industrial hygiene practices during use.

Storage & Shelf Life

Store ethylene glycol semiconductor in tightly sealed, chemically compatible containers away from incompatible materials such as strong oxidizing agents and acids. Maintain storage temperatures between 15-25°C in a dry, well-ventilated warehouse environment. The material should be protected from direct sunlight and moisture to preserve its semiconductor-grade purity. When stored properly in original containers, this product maintains its quality specifications for extended periods. Regular quality checks ensure continued compliance with purity standards.

Why Alliance Chemical

Alliance Chemical provides reliable supply of Ethylene Glycol Semiconductor with same-day shipping capabilities from our Taylor, Texas facility. We offer flexible shipping options including UPS for smaller quantities, LTL for medium orders, and FTL for bulk requirements. Every shipment includes comprehensive Safety Data Sheets (SDS) and Certificates of Analysis (COA) to ensure you receive material that meets your exact specifications. Our technical support team stands ready to assist with application guidance and regulatory compliance information.

Shipping & Availability

Parcel Shipping

UPS Ground supports pints, quarts, and most 1-gallon packages nationwide.

LTL Freight

5-gallon pails, drums, and totes move via LTL carriers such as ABF Freight, SEFL, Saia, and XPO.

Full Truckload

FTL available for palletized bulk orders. Competitive freight rates.

Local Pickup

Same-day pickup at our Taylor, TX warehouse for Texas customers.

SDS, COA, and TDS available for every product • Same-day shipping on orders before 1 PM CT

Frequently Asked Questions

What is Ethylene Glycol Semiconductor (CAS 107-21-1) and what is it used for?
Ethylene Glycol Semiconductor (C2H6O2, CAS 107-21-1) is a high-purity ethylene glycol grade formulated for electronic and laboratory use. It is commonly used as a high‑boiling solvent, heat-transfer fluid and process chemical in semiconductor manufacturing, laboratory applications and other industrial processes requiring low ionic contamination.
How should semiconductor-grade ethylene glycol be stored and what is its typical shelf life?
Store sealed containers in a cool, dry, well‑ventilated area away from strong oxidizers and direct sunlight, and keep containers tightly closed. Typical unopened shelf life is generally 12–24 months depending on grade and storage conditions; confirm exact expiry and storage recommendations with the supplier.
What safety and handling precautions are recommended for this product?
Handle with appropriate PPE including chemical-resistant gloves, safety goggles and local exhaust ventilation; avoid skin and eye contact and prevent ingestion or uncontrolled release to the environment. Always consult the product SDS for specific hazard, first-aid and spill-response procedures before use.
How do different concentrations or grades of ethylene glycol affect performance for semiconductor use?
Higher-purity grades (electronic/semiconductor grade) have lower ionic and metal impurities and lower water content, which minimizes contamination in sensitive processes; industrial grades contain more impurities and higher water content and are less suitable for electronics. Choose purity based on process sensitivity—typical semiconductor grades target >99.9% purity with very low ppm-level ionic contaminants.
What documentation is available with semiconductor-grade ethylene glycol?
Standard documentation includes Safety Data Sheets (SDS), Certificates of Analysis (COA), Technical Data Sheets (TDS) and, upon request, lot-specific test reports detailing purity, water content and trace ion/metals analysis. Additional QA/QC documentation can often be provided for large or custom orders.
How is ethylene glycol semiconductor shipped and what packaging options are offered?
It is typically supplied in steel drums, lined drums, intermediate bulk containers (IBCs) and bulk tanker loads depending on order size; smaller volumes may be available in laboratory bottles. Transport classification varies by jurisdiction and concentration—consult the SDS and carrier for applicable shipping regulations and container requirements.
Which materials is ethylene glycol compatible with and which should be avoided?
Ethylene glycol is generally compatible with stainless steel, carbon steel and many plastics such as polyethylene, polypropylene and PTFE, while some elastomers (certain natural rubbers and neoprenes) and some coatings can swell or degrade. Avoid contact with strong oxidizers and verify compatibility with specific metals, seals and coatings for each application, especially when inhibitors are not present.
What are the typical technical specifications for semiconductor-grade ethylene glycol?
Typical specifications include CAS 107-21-1, formula C2H6O2, molecular weight ~62.07 g·mol−1, density ~1.11 g·cm−3 (20 °C), boiling point ≈197–198 °C and melting point ≈−13 °C. Purity targets for semiconductor grade are commonly >99.9% with water content and ionic impurities controlled to low ppm levels; exact limits should be confirmed on the COA.
Which industries and specific applications use semiconductor-grade ethylene glycol?
Primary users include semiconductor and microelectronics manufacturers, research laboratories and industrial facilities requiring low-contamination solvents and heat-transfer media. Typical uses are precision cleaning and process chemicals, heat-transfer/coolant fluids in controlled environments, and other laboratory or industrial processes where low ionic and trace-metal levels are critical.
How can I purchase ethylene glycol semiconductor and what is its availability and lead time?
Semiconductor-grade ethylene glycol is available from chemical distributors and specialty suppliers in quantities from laboratory bottles to bulk tanker shipments, with custom grades and documentation available on request. Availability and lead time depend on grade, order size and region—contact the supplier with required purity, volume and documentation needs for pricing and delivery estimates.

Documentation & Downloads

Safety Data Sheet
SDS / MSDS
Request COA
Certificate of Analysis
Technical Data Sheet (TDS)
Available for all products

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