What is the difference between mono ethylene glycol and ethylene glycol?

What is the difference between mono ethylene glycol and ethylene glycol?

Ethylene glycol, also known as monoethylene glycol or MEG, is an odorless, colorless, hygroscopic liquid. Not only does it exhibit low volatility and low viscosity, but it is also fully miscible in water and many other organic liquids.

What is mono ethylene glycol antifreeze?

Mono ethylene glycol (MEG) is used as an anti-freeze additive for engine cooling systems to prevent freezing and as an anti-boil additive.

What color is ethylene glycol antifreeze?

The color of healthy engine coolant is green (for ethylene glycol) or orange (for Dexcool). A rusty color indicates that the rust inhibitor in the coolant has broken down and it can no longer control rust and scale buildup.

What happens when you heat ethylene glycol?

The use of ethylene glycol not only depresses the freezing point of aqueous mixtures, but also elevates their boiling point. This results in the operating temperature range for heat-transfer fluids being broadened on both ends of the temperature scale.

Does the color of antifreeze matter?

The truth is, color is not a reliable predictor for what type of coolant you have. For example, OAT coolants are usually orange, yellow, red or purple. Then the older IAT coolant is green. Coolants that manufacturers sell can confuse matters even more, like Honda’s blue coolant.

Is it OK to mix ethylene and propylene glycol?

Can I mix propylene glycol with ethylene glycol? Yes, they can be mixed. They would not cause any harm to the cooling system, but it does slightly weaken the heat transfer.

How do you check the concentration of ethylene glycol?

A handheld refractometer is easy to use. Just add a few drops of sample on the prism, hold up to a light source, and read the concentration on the scale inside the meter. A hydrometer is a tool used to measure specific gravity.

What are the hazards of ethylene glycol?

Ethylene Glycol Health Hazards. Ethylene Glycol is acutely toxic when ingested. Exposure through ingestion causes symptoms ranging from: Drowsiness. Nausea. Vomiting. Unconsciousness. Seizure.

Is ethylene glycol hazardous waste?

Ethylene glycol wastes are regulated a s hazardous waste in California because of the relatively low LD LO of ethylene glycol in humans (1592 mg/Kg).

What are the properties of ethylene glycol?

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.

What is mono ethylene glycol?

Mono Ethylene Glycol (also known as MEG) is a clear, colourless, virtually odourless, and slightly viscous liquid. It is miscible with water, alcohols, and many organic compounds, and has the formula C 2H 6O 2. It is the most important of the commercially available ethylene glycols as it has many industrial applications.