Activated bleaching earth, also known as activated clay or bleaching clay, is a type of clay that is used in various industries for the purification and clarification of oils, fats, and waxes. Here are some key points about activated bleaching earth:
1. **Composition**: Activated bleaching earth is typically composed of montmorillonite, a type of clay mineral known for its high adsorption capacity. The clay is activated through a process that involves acid treatment or thermal activation to increase its surface area and porosity.