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  1. Sodium triphosphate (STP), also sodium tripolyphosphate (STPP), or tripolyphosphate (TPP), [1]) is an inorganic compound with formula Na 5 P 3 O 10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products ...

    • Na₅P₃O₁₀
    • 367.864 g/mol
    • 622 °C (1,152 °F; 895 K)
    • 14.5 g/100 mL (25 °C)
  2. Mar 16, 2012 · Warnings of sodium tripolyphosphate in fish. You might be paying more for seafood that contains this chemical, because it can increase the weight of the products to which it’s applied. Worse, you might not even know it’s there, because labelling of this potentially toxic chemical is not mandatory in the US, says Ms Logan. So what is it?

  3. Jun 25, 2020 · Sodium tripolyphosphate (STPP), the sodium salt of the polyphosphate penta-anion, also known as pentasodium tripolyphosphate or sodium triphosphate (different with trisodium phosphate), is a synthetic ingredient mainly used for retaining moisture in fish. The European food additive number for it is E451 (i).

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  5. Jun 18, 2023 · Sodium Tripolyphosphate (STPP) is an inorganic compound with the chemical formula Na5P3O10. It is a white, crystalline powder that is highly soluble in water. STPP is derived from phosphoric acid and sodium hydroxide and is commercially available in various grades.

  6. Sodium tripolyphosphate (STPP) is a synthetic preservative that helps processed food retain tenderness and moisture during storage and transportation. It’s a source of excess dietary phosphorous, which can cause cardiovascular and kidney problems. According to the National Institute for Occupational Safety and Health (NIOSH), STPP is a ...

  7. Oct 15, 2019 · 33. By Melissa Clark. Oct. 15, 2019. Whether farmed or wild caught, the cheaper the shrimp, the more likely it is to have been treated with chemicals, particularly sodium tripolyphosphate and ...

  8. Jan 30, 2024 · Sodium tripolyphosphate (STPP) is a chemical that has many uses in industry, ranging from an ingredient in cleaning products to a food preservative. Also known by alternate names like pentasodium salt or triphosphoric acid, the substance falls into the classification Generally Regarded As Safe (GRAS), which means that past use of the chemical ...

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