Used primarily as a pH buffer in laboratories, it ensures accurate calibration of pH meters and instruments. It is essential in biochemical and molecular biology experiments where maintaining a stable pH is critical. Additionally, it serves as a nutrient source in microbial culture media, supporting the growth of microorganisms. In the pharmaceutical industry, it is employed in the formulation of certain medications to control acidity. It also finds application in water treatment processes to adjust pH levels and prevent corrosion in pipelines.