Buffer and Media Preparation: Prepare and adjust ionic strength/osmolarity in PBS, TBS, SSC/SSPE, and LB/TSB media by diluting 5M Sodium Chloride to working concentrations.

Chromatography (Ion Exchange/HIC): Create salt gradients and elute bound proteins using controlled additions of 5M Sodium Chloride.

Nucleic Acid Precipitation and Cleanup: Facilitate DNA/RNA precipitation with ethanol/isopropanol and optimize wash steps by adding 5M Sodium Chloride.

Hybridization Buffers: Formulate SSC/SSPE and high-salt hybridization/wash buffers with 5M Sodium Chloride to control stringency.

Immunoassay and Western Washes: Adjust NaCl in PBS/TBS (e.g., PBST/TBST) using 5M Sodium Chloride to reduce nonspecific binding.

Protein Solubility and Precipitation: Modulate ionic strength with 5M Sodium Chloride to test protein solubility, stabilize enzymes, or induce salting-out.

Physiological Saline and Sample Dilution: Prepare sterile 0.85–0.9% saline and isotonic diluents by diluting 5M Sodium Chloride.

Microbial and Cell Culture Osmolarity: Tune NaCl levels in culture media for E. coli and other bacteria or in mammalian buffers using 5M Sodium Chloride to maintain appropriate osmolarity.