What is the viscosity of ethylene glycol?
|Vapor pressure||0.06 mmHg (20 °C)|
|Occupational safety and health (OHS/OSH):|
Is ethylene glycol more viscous than water?
It’s also the increased number of hydrogen bonds in ethylene glycol that makes it more viscous (less runny) than ethanol (or water). Water also contains O-H groups, of course, which ‘hydrogen bond’ to each other, causing water to have a very high boiling point for a molecule of its size.
What is the viscosity of ethylene glycol at 20 C?
|Viscosity||18.376 cP @Temperature 20.0 °C||18.376 cP @Temperature 68.0 °F|
|Molecular Weight||62.069 g/mol||62.069 g/mol|
|Surface Tension||48.49 dynes/cm @Temperature 20.0 °C||48.49 dynes/cm @Temperature 68.0 °F|
What is the viscosity of water glycol?
Table 8-3-1 – Properties of mixture Water/Glycol
|Substance and % by volume in mixture||Minimal working temperature [oC]||Dynamic viscosity X10-3 [N.s/m2]|
|1,2-Propylenglycol C3H6(OH)2 25||-10||10.22 6.18 2.86 1.42 0.903 0.671 0.509|
|38||-20||47.25 12.54 4.56 2.26 1.32 0.897 0.687|
|47||-30||160 74.3 31.74 18.97 6.264 2.987 1.624 1.10 0.807|
Is glycol heavier than water?
Glycols are heavy, syrup like fluids at full concentration, and become thinner when mixed with water. However, the mixed solution of water-glycol will be thicker, heavier, than the water alone was.
What is the ratio of water to ethylene glycol?
A mixture of about 2:1 water:glycol (around 33% glycol) is often recommended, as this has quite a low freezing point without being too viscous. (Changing the proportion also affects the boiling point of the mixture.)
Why is ethylene glycol viscosity so high?
Ethylene glycol is more viscous than ethyl alcohol because ethylene glycol contains two O-H groups (ethyl alcohol contains one O-H group). This results in stronger hydrogen bonding between ethylene glycol molecules.
Which will have higher viscosity glycerol or ethylene glycol?
Glycerol (1,2,3-trihydroxypropane) has three -OH groups per molecule while ethylene glycol (1,2-dihydroxyethane) has two -OH groups. The viscosity depends on the amount of hydrogen bonding between molecules, and the more -OH bonds there are, the more hydrogen bonding can occur. So glycerol is the most viscous.
Which is denser water or ethylene glycol?
So the ethylene glycol is denser than water. If we place one tablespoon of each, ethylene glycol, rubbing alcohol, and water in a test tube very carefully, they will stay separated: the rubbing alcohol will float on the water, and the ethylene glycol will sink.
Does ethylene glycol mix with water?
Ethylene glycol is completely miscible with water in all proportions (as the commenters point out). Therefore, once mixed, the glycol will not separate from the water, ever. The only exception is if it gets so cold the mixture starts to freeze.
Does ethylene glycol dissolve in water?
TCC’s Ethylene Glycol (MEG) is a toxic, colorless, practically odorless, low-volatility, low-viscosity, hygroscopic liquid. It is completely miscible with water and many organic liquids.
Is ethylene glycol more viscous than ethanol?
Why is glycerol heavier than ethylene glycol?
Glycerol (1,2,3-trihydroxypropane) has three -OH groups per molecule while ethylene glycol (1,2-dihydroxyethane) has two -OH groups. The viscosity depends on the amount of hydrogen bonding between molecules, and the more -OH bonds there are, the more hydrogen bonding can occur.
What is constant kB of ethylene glycol?
Ethylene glycol (C 2 H 6 O 2 ) is a molecular compound that is used in many commercial anti-freezes. A water solution of ethylene glycol is used in vehicle radiators to lower its freezing point and thus prevent the water in the radiator from freezing. Calculate the freezing point of a solution of 400. g of ethylene glycol in 500. g of water.
What is the critical temperature of ethylene?
Critical point: 282.5 K (9.4 °C), 50.6 bar log 10 of ethylene vapor pressure. Except where noted otherwise, data relate to standard ambient temperature and pressure. Disclaimer applies. This page was last edited on 31 December 2021, at 13:13 (UTC). Text is
What is the molar mass of ethylene glycol?
Ethylene glycol is composed of 6 hydrogens, two carbon, and two oxygen atoms. So, M (molar mass of Ethylene glycol) = 12 (carbon atomic mass) x 2 + 1 (hydrogen atomic mass) x 6 + 16 (oxygen atomic mass) x 2 = 62.07 (g/mol).