Used in the food industry as an acidity regulator and emulsifier, particularly in baking powders and effervescent tablets.

Serves as a component in Fehling's solution for detecting reducing sugars in laboratory settings. Also used in chemical laboratories as a precipitating agent or solvent for certain metals, especially in the analysis of magnesium and calcium.

Employed in the electroplating industry to stabilize baths and improve metal deposition.

Acts as a chelating agent in some pharmaceutical formulations to enhance stability. Also found in certain medicinal laxatives due to its mild stimulant effect on the intestines, and used in treatments for kidney diseases or gout to aid in waste excretion.

In the beverage industry, used as a pH buffer and to prevent crystal formation in wines or fruit-based drinks.