It is used as a raw material in fertilizer production. It is also employed as a food additive and as a regulating agent in buffer solutions.

It is used as a component of fully water-soluble dry fertilizers in agriculture, as well as in dry-type fire extinguishers and in the machinery industry. In the food sector, it is utilized as a leavening agent.

It is an important source in plant nutrition and is used in fertilizer production.

It is used in toothpaste, soap, detergents, and industrial cleaning products to enhance cleaning performance and as a structural filler. STPP has the ability to reduce water hardness and to remove and retain dirt from fabrics. It is also utilized as a preservative additive in the food industry.

It is widely used in detergents as a water softener, metal cleaner, soap and detergent builder, hardness stabilizer, and soil dispersant. In addition to serving as a food additive, it is also utilized in enamel production, tin plating, purification of ceramic clay, dyestuffs, degreasing slurries, and synthetic rubber manufacturing.

It acts as a water softener in detergents, an emulsifier that keeps fats in suspension, and prevents redeposition on fabrics during washing. It is also used as a buffering agent in toothpastes, as an inorganic stabilizer in the textile industry, and as a food additive.