Sodium Lignosulfonate is a water-soluble salt of lignosulfonic acid, derived from wood or lignin as a byproduct of the papermaking process. It is primarily used as a dispersing agent, plasticizer, and binder in various industries. Sodium lignosulfonate has excellent water retention properties and is commonly used in concrete and ceramics as an additive to improve workability and reduce water usage. It is also used in agriculture, detergents, and asphalt emulsions due to its ability to modify the physical properties of liquids and solids.