Sodium tripolyphosphate is a white powdery crystal with good fluidity and is easily soluble in water. Its aqueous solution is alkaline. It is commonly used in food as a water retention agent, quality improvement agent, pH regulator, and metal chelating agent.

Purpose [2-3]
Sodium tripolyphosphate, as a food additive, can be used as a water retaining agent and quality improver in meat products, aquatic products, dairy products, fruit juice beverages, etc; Used for ham and pork chops to make the meat tender and smooth, improving the taste; Used for weight gain and water retention in seafood and fresh river products; Antioxidants used in fruit juice beverages to extend shelf life; A dispersant used for beans and dairy products. In addition, it can also be used as a water softener, thickener, etc. in the industrial field. In the food industry or industrial sector, sodium tripolyphosphate is generally prepared as a solution for use. Currently, most sodium tripolyphosphate is added to water and instantly hydrates to form hexahydrate sodium tripolyphosphate. Hexahydrate sodium tripolyphosphate has low solubility and is in an oversaturated state, causing material clumping.