Used in biochemical and molecular biology laboratories to maintain a stable high pH environment, particularly in enzyme assays and protein purification processes where alkaline conditions are required. Commonly employed in phosphatase enzyme studies, especially alkaline phosphatase detection in immunoassays and nucleic acid work. Its high phosphate concentration helps resist pH changes during reactions involving hydrogen ion release or uptake. Also utilized in cell lysis buffers and electrophoresis systems where consistent alkaline pH is critical for sample stability and separation efficiency.