Used as a viscosity modifier and fluid loss control agent in water-based drilling fluids in oil and gas exploration. Helps stabilize the borehole by forming a thin, low-permeability filter cake on the wall of the well. Provides excellent hydration and dispersion in both fresh and saltwater environments. Commonly used in well completion and workover operations due to its ability to suspend solids and maintain consistent fluid properties under varying temperatures. Also applied in construction materials like cement slurries and gypsum plasters to improve workability and water retention. In non-oilfield applications, serves as a thickener and stabilizer in coatings, adhesives, and personal care products.