Used as a buffering agent in food and beverage industries to regulate acidity, particularly in soft drinks and baking powders. Acts as a chelating agent in pharmaceutical formulations to stabilize active ingredients by binding metal ions. Employed in analytical chemistry as a component of Fehling's solution for detecting reducing sugars. Serves as an additive in electroplating baths to improve metal deposition uniformity. Also utilized in the textile industry to neutralize excess acids during dyeing processes.