What are the properties of ethylene glycol?
Ethylene glycol is a clear, sweet, slightly viscous liquid that boils at 198 °C (388.4 °F). Its most common use is as an automotive antifreeze. A 1:1 solution of ethylene glycol and water boils at 129 °C (264.2 °F) and freezes at −37 °C (−34.6 °F), serving as an excellent coolant in automotive radiators.
What is the use of ethylene glycol?
Ethylene glycol is a chemical commonly used in many commercial and industrial applications including antifreeze and coolant. Ethylene glycol helps keep your car’s engine from freezing in the winter and acts as a coolant to reduce overheating in the summer.
What is glycol describe the method of preparation properties and uses of ethylene glycol?
Ethylene glycol (name IUPAC: ethane-1,2-diol) is an organic formulated compound (CH2OH)2. It is used mainly for two reasons, as a raw material in the manufacture of polyester fibers and formulations for antifreeze. This is an odourless, colourless, viscous liquid with a sweet taste.
What are the physical properties of antifreeze?
Ethylene glycol has desirable thermal properties, including a high boiling point, low freezing point, stability over a wide range of temperatures, and high specific heat and thermal conductivity. It also has a low viscosity and, therefore, reduced pumping requirements.
Is ethylene glycol a hazardous material?
Glycol as a HAZARDOUS WASTE. Contact your state Department of Environmental Protection (DEP) or your regional office of the federal Environmental Protection Agency (EPA) for specific recommendations. Prior to working with Ethylene Glycol you should be trained on its proper handling and storage.
What is the difference between ethylene and ethylene glycol?
The main difference between propylene glycol and ethylene is the level of toxicity. Propylene glycol has a very low toxicity, which is why it is also found in cosmetics and personal care products, whereas ethylene glycol is poisonous and must be handled with caution to restrict any human or animal exposure.
What temp does propylene glycol freeze?
-74.2°F (-59°C)
Propylene glycol/Melting point
What are the physical and chemical properties of glycol ethers?
Physical and Chemical Properties At room temperature and atmospheric pressure, 2ME and 2EE are colorless liquids. Both compounds are completely miscible with water and with many organic solvents. Both are highly reactive in the presence of strong oxidizers; 2ME is also highly reactive in the presence of strong bases.
What are the glycol give any two methods for preparation of ethylene glycol?
Ethylene glycol is prepared by the following methods.
- From Ethylene. By hydroxylation of ethylene.
- From ethylene oxide. By hydrolysis of ethylene oxide.
- From Oxalic esters. Oxalic esters on reduction with sodium and alcohol give ethylene glycol.