Sodium Acid Phosphate, also known as sodium dihydrogen phosphate, is a food additive commonly used in the food industry as a pH control agent, emulsifier, and leavening agent. It is a white powder that is highly soluble in water and can be found in a variety of food products, including processed meats, dairy products, baked goods, and beverages.

As a pH control agent, sodium acid phosphate helps to regulate the acidity of food products and prevent spoilage. It also acts as an emulsifier, helping to blend ingredients together and improve texture. In baked goods, it functions as a leavening agent, helping to create a light and fluffy texture.

Sodium acid phosphate is generally recognized as safe by the FDA when used in accordance with Good Manufacturing Practices. However, excessive consumption of sodium in the diet has been linked to high blood pressure and other health concerns, so it is important to consume sodium acid phosphate in moderation as part of a balanced diet.

Overall, sodium acid phosphate is a versatile food additive that helps to improve the quality and shelf life of many different types of food products.