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Sodium tripolyphosphate (STTP)

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            Sodium tripolyphosphate (STTP) for industrial chemical


Description :

Sodium tripolyphosphate ($\text{Na}_5\text{P}_3\text{O}_{10}$), often abbreviated as STPP, is a highly versatile inorganic salt that serves as a cornerstone in industrial chemistry. It typically presents as a white, odorless, granular powder or crystalline substance that is highly soluble in water, forming a mildly alkaline solution. The compound is the sodium salt of the polyphosphate penta-anion, which gives it its strong chelating or sequestering properties. This means it can bind tightly to di- and trivalent metal ions, notably calcium ($\text{Ca}^{2+}$) and magnesium ($\text{Mg}^{2+}$). This ability to sequester hard water minerals is its most critical function in industrial applications, enhancing the performance of other active agents like surfactants and preventing mineral scale formation. It is commercially produced on a massive scale by heating a precise mixture of monosodium phosphate and disodium phosphate.

Uses :

  1. Sodium tripolyphosphate (STPP) is a white crystalline powder or granular substance.
  2. It's widely used in industrial detergents and cleaning products as a water softener and emulsifier.
  3. STPP effectively removes oil, grease, and dirt from surfaces by preventing them from redepositing.
  4. In industrial applications, it's also utilized in ceramics, textiles, and paper manufacturing.
  5. It acts as a sequestrant, helping to control pH and improve the performance of various chemical processes.
  6. STPP is a key ingredient in water treatment processes, aiding in the prevention of scale formation and corrosion.

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report regarding this chemical then contact us support@echem.com.bd.



  • Water Softening

  • Emulsification

  • Buffering Agent

  • Dispersing Agent

  • Textile Processing

  • Food Additive

  • Flame Retardant

  • Industrial Cleaning

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