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Information @ a Glance

General Information

  • Sodium perborate (PBS) is a white, odorless, water-soluble chemical compound with chemical formula NaBO3.
  • Sodium perborate usually exists in two forms, tetrahydrated and monohydrated.
  • Sodium perborate (SPB, NaBO3.4H2O), is a nontoxic, innocuous and inexpensive industrial chemical.
  • Sodium perborate is recognized as an outstanding oxidative bleaching agent and has been widely used as such for almost a century.

Process

  • Sodium perborate is manufactured by reaction of disodium tetraborate pentahydrate, hydrogen peroxide, and sodium hydroxide.
  • Sodium perborate undergoes hydrolysis in contact with water, producing hydrogen peroxide and borate.
  • Sodium perborate is obtained commercially by addition of hydrogen peroxide to a sodium metaborate solution at a temperature close to 20.degree. C. according to the continuous or batch fabrication methods.

Uses

  • Sodium perborate is used by industry to formulate a variety of cleaning products including powders
    or tablets sold as laundry detergents, dishwashing products, or a variety of other cleaning products.
  • Sodium perborate can also be used for selective monobromination of various deactivated anilines using potassium bromide and ammonium molybdate as catalyst.
  • It serves as a source of active oxygen in many detergents, laundry detergents, cleaning products, and laundry bleaches.
  • It is also present in some tooth bleaching formulas. It is used as a bleaching agent for internal bleaching of a non vital root treated tooth.

Report

  • Today most dentists still use sodium perborate mixed with water or hydrogen peroxide in the internal bleaching technique.
  • A study was made of the activation of Bacillus cereus strain T spores by using the oxidizing agent sodium perborate.
  • This is one of the first oxidative preservatives developed, and it works by oxidizing cell walls or membranes and disrupting cellular function.
  • In order to meet the growing demand in sodium perborate market, the existing capacity of sodium perborate plant will be raised to 34.000 tpa new capacity by 14.000 tpa expansion.
  • Over the last five years, the use of sodium perborate in detergent products marketed across Western Europe has decreased by around 80% and sodium perborates have been largely replaced by sodium percarbonates.

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