Borax, sodium tetraborate decahydrate, is widely used in various home and personal care products such as soaps, detergents, cosmetics and lens solutions. It is also used in the metal and foundry industry as a flux agent and as a corrosion inhibitor.

Na2B4O7 · 10H2O


Chemical Formula

Na2B4O7 · 10H2O

EC Number


CAS Number


  • Home & Personal care
  • Industry chemicals
  • Cleaning products
  • Personal care products
  • Foundry
  • Processing aid
  • Intermediate


  • Assay: 99.0-100.5%
  • pH value: 3.8 - 4.8
  • Sulphate: max. 450 ppm
  • Heavy metals: max. 15 ppm
  • Ph.Eur.

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