Polar Solvents in Cleanroom Cleaning

POLAR SOLVENTS are often used to dissolve polar residues. But what is a polar solvent? A polar solvent is one that has a net separation of charge in the molecular structure caused by differences in the electronegativities of various atoms in the molecule.

 

Determining Polar vs. Non-Polar

If you’re not a chemist, the simplest way to identify whether a solvent is polar or non-polar is to look up its dielectric constant. The higher the dielectric constant, the more polar the solvent.

Generally, a polar solvent is one with a dielectric constant higher than 15. The dielectric constants of water and hexane are 80 and 1.9, respectively. Hence, water is a polar solvent used for polar soils, like salts, and hexane is a non-polar solvent used for non-polar soils, like oils and greases.

 

 

Did You Know?

There is much to learn about the cleaning and maintenance of controlled environments. Berkshire’s team of highly trained representatives can help you understand the best practices and products for your application.

 


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