One of the CAS numbers of Trisodium phosphate is 7601-54-9, Trisodium phosphate, colorless to white needle-like crystal or crystalline powder, anhydrous or crystalline water containing 1 to 12 molecules, odorless. The melting point of dodecyl hydrate is 73.4°C. Soluble in water, insoluble in ethanol. The pH value of 1% aqueous solution is 11.5~12.1
As a quality improver, it can improve the complexing metal ions of food, pH value, increase the ionic strength and so on, so as to improve the food's binding force and water retention. According to Chinese regulations, it can be used for cheese with a maximum usage of 5g/kg. The maximum usage in western ham, meat, fish, shrimp and crab is 3.0g/kg; The maximum usage is 0.5g/kg in cans, fruit juices, beverages and dairy products.
2, in the chemical industry, textile, printing and dyeing, paper making, power generation and other industries used as a water softener and detergent, boiler scale inhibitor, paper dyeing in the water softener, the production of wax paper with adhesive pH buffer, printing and dyeing fixing agent, fabric mercerization enhancer, anti brittle agent line. Metallurgical industry used as chemical degreasing, decontamination, as an excellent accelerator in photographic development solutions. Tooth cleaner and bottle cleaner. A coagulant for rubber milk. Sugar purifier. Phosphate plays a role in the quality improvement of food processing, such as in the meat products to maintain the water retention of meat, enhance the effect of binding force, so as to reduce the loss of nutrients in the meat and preserve the meat tenderness. It is also used as emulsifier, nutrient supplement and quality improver in food processing. It is the raw material for making noodles edible alkali water, and also used in the refining of granulated sugar and the manufacture of α-starch. Also used as a detergent for food bottles, cans, etc.
3, solid trisodium phosphate (TSP) belong to the strong base, weak acid salt with strong alkali and high solubility, stable chemical properties, can be long-term preservation, in the containment spray system (EAS) spray water TSP substitute NaOH addition, to adjust the pH value of spray liquid, effectively remove from release to the containment of iodine gas leakage of cooling water, avoid strong base to the injury of the staff, easy to clean up after the accident.