👉 The sol fluid, also known as the solvent in a solvent-fluid system, is a substance that dissolves other substances to form a homogeneous solution. It's typically a liquid that can dissolve a wide range of solutes, including gases, solid particles, and other liquids. The sol fluid's polarity, molecular structure, and chemical properties determine its ability to dissolve various solutes. Common examples include water, ethanol, and acetone, which are widely used in laboratories and industries due to their solubility properties. The interaction between the sol fluid and solutes is governed by principles of thermodynamics and kinetics, influencing the rate and extent of dissolution.