Sodium Tripolyphosphate (STPP) is a chemical compound with the chemical formula Na5P3O10. It is a salt of sodium and tripolyphosphate, and it exists in the form of white crystalline powder or granules. STPP has numerous applications in various industries, including food, chemicals, detergents, ceramics manufacturing, water treatment, and food additive production. It is used to enhance durability, soften water, and prevent dirt buildup in industrial processes and daily life.
Usage Instructions: Follow the standards outlined in Circular 24/2019/TT-BYT and Circular 17/2023/TT-BYT.
Storage: Store in tightly sealed packaging, in a cool, dry place, away from direct sunlight.
Applications:
Used in various industries:
- Water retention: Prevents water loss, increases weight, and prevents water loss after thawing, making seafood firm, non-slimy, and enhancing the bonding of meat, fat, and water to create gel strength for meat blocks in products used in conjunction with nitrate-nitric salts, preserving the natural sweetness of the product.
- Antioxidant: Prevents the oxidation process, maintaining the fresh color of meat and meat-processed products.
- Preservative: Due to its antimicrobial properties, STPP extends the preservation time and is used as a food preservative for seafood, meat, and animal feed, indicated as E451.
- Noodle production: Used in making noodles, pho, and hu tieu to create elasticity and shine, preventing sticking when held, reducing breakage, and preventing water cloudiness during cooking.
- Water softening: Reduces water hardness by forming soluble calcium, magnesium, and iron complexes and prevents dirt from adhering back to fabric.
- Foam inhibitor: Acts as an antifoaming agent and synthetic tanning agent (SYNTAN), disperses clay.
Additionally, STPP is used in the paper industry, cement production, toothpaste, and some textile dyeing products.