Solvent solubilizers are chemical substances that are added to a solvent to make it capable of dissolving other substances. These solubilizers are typically added to solvents that have limited solubility in water or other polar solvents. They function by forming micelles, which are small clusters of molecules that surround and solubilize the target substance.

Solvent solubilizers are commonly used in a variety of industries, including pharmaceuticals, cosmetics, and cleaning products. In the pharmaceutical industry, they are often used to improve the solubility and bioavailability of drugs. They are also used in cosmetics to aid in the dispersion of pigments and other ingredients.

One of the most commonly used solvent solubilizers is a surfactant. Surfactants are amphipathic molecules, which means they have both a hydrophilic (water-loving) and a hydrophobic (water-fearing) region. When surfactants are added to a solvent, they can lower the surface tension of the solvent, allowing it to better interact with other molecules. This can increase the solubility of a wide range of substances in the solvent.

Another type of solvent solubilizer is a cosolvent. Cosolvents are organic compounds that are added to a solvent to enhance its ability to dissolve other substances. They are often used when the solvent alone is not capable of dissolving a particular substance. Common cosolvents include ethanol, propylene glycol, and glycerol.

Overall, solvent solubilizers play an important role in many industrial processes by improving the solubility and effectiveness of solvents.