Buffer and Reagent Preparation: Adjusts ionic strength and osmolarity in common laboratory buffers (e.g., PBS, TBS) and saline solutions.

Cell and Microbial Culture Media: Provides essential ionic balance in mammalian cell culture and bacterial media (e.g., LB, TSB) for growth of Escherichia coli and Staphylococcus aureus.

Protein Purification and Chromatography: Controls ionic strength and enables salt gradients in ion exchange chromatography to modulate protein binding and elution.

Nucleic Acid Extraction and Precipitation: Facilitates DNA/RNA precipitation and is included in saline-based buffers for hybridization (e.g., SSC/SSPE).

Immunoassays and Blotting: Component of PBS/TBS used for antibody dilutions, washing steps, and blocking during ELISA, Western blotting, and immunostaining.

Sample Dilution and Storage: Used to prepare isotonic saline (0.9% NaCl) for sample handling, dilution, and stabilization.