1. Polar Solvents:
* Characteristics: These solvents have a significant difference in electronegativity between their atoms, leading to a separation of charge and a dipole moment. They are good at dissolving polar molecules like salts and sugars.
* Examples:
* Water (H₂O): The most common polar solvent.
* Ethanol (C₂H₅OH): Used in many applications, including alcoholic beverages and as a disinfectant.
* Acetone (CH₃COCH₃): A common solvent used in nail polish remover and in the lab.
* Methanol (CH₃OH): A toxic solvent used in fuels and as a solvent for some resins.
2. Nonpolar Solvents:
* Characteristics: These solvents have a balanced distribution of electrons, resulting in a neutral charge. They are good at dissolving nonpolar molecules like fats and oils.
* Examples:
* Hexane (C₆H₁₄): A common solvent used in the extraction of oils and fats.
* Diethyl ether (CH₃CH₂OCH₂CH₃): Used in the laboratory as an extracting solvent.
* Toluene (C₇H₈): A solvent used in paint thinners and adhesives.
* Benzene (C₆H₆): A highly toxic solvent used in industrial applications.
Important Note: The distinction between polar and nonpolar is a bit of a simplification. There are also "semi-polar" solvents that have some degree of both polar and nonpolar characteristics.
