Sodium Citrate

Sodium Citrate is the sodium salt of citric acid, typically produced through fermentation of carbohydrate sources followed by neutralization with sodium hydroxide. It excels as a buffering agent that maintains stable pH in the 7.5-9.0 range while simultaneously acting as a chelating agent to sequester metal ions that could destabilize formulations or cause discoloration. Formulators favor it for its dual functionality, excellent water solubility, and ability to enhance the efficacy of preservatives and antioxidants by removing trace metals that catalyze degradation reactions.