In this article we will discuss about:- 1. Meaning of Colloid 2. Properties of Colloid 3. Types 4. Soil Colloids. Meaning of Colloid: Graham (1861) divided the soluble substances into two classes—crystalloid and colloids depending on their power to diffuse through vegetable and animal membranes. Crystalline substances such as sugar, salt and urea which in solution diffused rapidly through animal [...]
After reading this article you will learn about the types and properties of soil colloids. Types of Soil Colloids: The seat of chemical activity in soils resides in the soil colloidal particles. All soils excluding pure sands contain particles of colloidal size. Soil colloids possess properties very much like those of typical colloidal substance like gelatin, starch etc. Soil colloids [...]
After reading this article you will learn about:- 1. Definition of Ion-Exchange 2. Site for Ion Exchange 3. Kinds of Exchangeable Ions 4. Factors Affecting Ion-Exchange. Definition of Ion-Exchange: Ion-exchange is defined as a reversible process by which cations and anions are exchanged between solid and liquid phases, and between solid phases it in close contact with each other. For [...]