The concentration of the solution depends on the amount of matter dissolved in the solvent, and the solubility is the maximum amount of matter dissolved by the solvent at a given temperature. Organic solvents are mainly used for dry cleaning (e.g. four vinyl chloride), as paint thinner (e.g. toluene, turpentine), for washing or removal of glue (e.g. acetone, methyl acetate, ethyl acetate), rust (e.g. hexane), for detergent (Lemon Essence), for perfume (alcohol) and for chemical synthesis (chemical synt hesis).
Solvents and solutes can generally be divided into polar groups (hydrophilic) and non-polar (hydrophobic). Polarity can be obtained by measuring the dielectric constant or dipole distance of the substance.