Stain removal are capable of removing: Household bleach generally removes a stain's colour, without dissolving the stain itself. Hydrogen peroxide is also a bleaching agent that can be used to treat stains. Sodium hydrosulphite and sodium hypochlorite normally used for removing stain and dyes colors. Acetone is good for removing some glues, nail polish, ink stains, rubber cement, and grease. Nail polish remover may contain acetone, however for general use it is best to obtain bottled acetone from a hardware store. It can be diluted with water. Inert solvents are those that do not react with anything in the stain. Water for
Solvent casting and particulate leaching Solvent casting and particulate leaching In solvent casting and particulate leaching (SCPL), a polymer is dissolved in an organic solvent. Particles, mainly salts, with specific dimensions are then added to the solution. The mixture is shaped into its final geometry. For example, it can be cast onto a glass plate to produce a membrane or in a three-dimensional mold to produce a scaffold. When the solvent evaporates, it creates a structure of composite material consisting of the particles together with the polymer. The composite material is then placed in a bath which dissolves the particles, leaving behind a porous structure.