ETHYLENE GLYCOL
Ethylene glycol (EG) is a colorless, odorless, and sweet-tasting organic compound with the chemical formula C2H6O2. It is a commonly used industrial chemical with a wide range of applications, including antifreeze, coolants, solvents, and chemical intermediates.
PROPERTIES
| Property | Specification |
|---|---|
| Chemical Formula | C2H6O2 |
| Molecular Weight | 62.07 g/mol |
| Melting Point | -13°C |
| Boiling Point | 197.3°C |
| Density | 1.113 g/mL at 25°C |
| Viscosity | 16.9 mPa.s at 20°C |
| Flash Point | 111°C |
| Auto-ignition Point | 385°C |
| Vapor Pressure | 0.07 kPa at 25°C |
SPECIFICATION
| Molecular formula | C2H6O2 |
| Molecular weight | 62.07 g/mol |
| Appearance | Clear, colorless liquid |
| Odor | Odorless |
| Melting point | -12.9°C |
| Boiling point | 197.3°C |
| Density | 1.113 g/cm3 at 20°C |
| Solubility | Miscible with water, alcohol, and acetone |
| pH | Neutral |
| Flash point | 111°C (closed cup) |
| Autoignition point | 410°C |
| Viscosity | 16.9 mPa·s at 20°C |
| Heat of combustion | -1364 kJ/mol |
| Heat of vaporization | 60.4 kJ/mol |
| Heat capacity | 112 J/mol·K |
| Refractive index | 1.4314 at 20°C |
| Vapour pressure | 0.08 kPa at 20°C |
APPLICATION
Ethylene glycol has a wide range of applications in various industries, including:
Antifreeze and Coolants: EG is commonly used as an antifreeze and coolant in automobiles, airplanes, and HVAC systems. It helps to prevent the formation of ice crystals in the cooling system, which can cause damage to the engine.
Chemical Intermediates: EG is used as a chemical intermediate in the production of polyester fibers, resins, and films. It is also used in the production of ethylene glycol ethers, which are used as solvents in various industries.
Solvents: EG is used as a solvent in the production of inks, dyes, and paints. It is also used as a solvent in the pharmaceutical industry for the production of various drugs.
Deicing Fluids: EG is used as a deicing fluid in airports to remove ice and snow from runways and taxiways.
Packaging: Ethylene glycol is commonly packaged and transported in drums, totes, or tankers. The packaging materials are usually made of high-density polyethylene (HDPE) or stainless steel to prevent contamination and ensure safe transportation.