For water this constant is approximately 80, larger than most liquids.  
For water this constant is approximately 80, larger than most liquids.  Since it gives a measure of a solvent's insulating ability, the greater this chemical property, the greater a solvent's ability to separate opposite charges from each other.  FTP, give the chemistry term that gives a rough indication of a solvent's polarity and ability to store electric fields.
For water this constant is approximately 80, larger than most liquids.  
dielectric constant or relative permittivity