Fertibor® is a free-flowing, highly soluble granular material that leaves no residue. As a versatile source of elemental boron, Fertibor is a valuable addition to solid, liquid, or suspension fertilizers.


Molar Weight291.29 g/mol
Melting Point1000.0°C
Boiling Point>300 C
FormsWhite, Crystalline, Solid

Uses and Applications

Key applications

  • Buffer agent
  • Wastewater treatment
  • Flame retardant
  • Ceramics
  • Glass
  • Adhesives and Sealants
  • Fertiliser
  • Detergent
  • Micronutrient
  • Bleaching agent


  • Agrobusiness

Synonyms: Boron, Disodium Tetraborate Pentahydrate, Borax 5 Mol, Borax Pentahydrate, Disodium Tetraborate Pentahydrate, Sodium Borate, Sodium Tetraborate Pentahydrate

Chemical Formula: Na2B4O7.5H2O

CAS Number: 12179-04-3