Borax Decahydrate
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Borax Decahydrate (also known as “10 mol Borax”) is a white, odorless crystalline granular or powder product. It is mildly alkaline by nature. As a result, it is commonly used as a buffering salt. Compared to Etibor 48 (Borax Pentahyrdate), which has a similar chemical structure, Borax Decahydrate has a lower Boron content per unit mass, a higher ratio of bound water and is more hygroscopic. It dissolves in water more easily than most other boron products.

Borax Decahydrate
Granular - Specifications
Borax Decahydrate
Powder - Specifications

Typical properties of Borax Decahydrate:

 Component Typical Value
B2O3 38%
Na2O 17%
SO4 100 ppm
Fe 3 ppm
Cl 22 ppm
Purity 100%
Retention on 1.00 mm or +18 mesh 1.6%
Through 0.063 mm or – 230 mesh 3.0%
  • Adhesives
  • Agriculture
  • Fluxing agent in metallurgy
  • Soaps and detergents
  • Flame retardant
  • Other Applications:
    • Corrosion inhibition
    • Water softener and buffering agent
    • Lubricant
    • Antifreeze formulations

Government registration or certification may be required for particular applications in certain countries.

Standard Packaging and Weights – Borax Decahydrate (All forms)
Package Type Borax Decahydrate: Granular Borax Decahydrate: Powder
White polypropylene woven bag with interior lamination 25 KG Bag
(55.1 lbs.)
Multi-wall kraft paper bag with plastic liner 25 KG Bag*
(55.1 lbs.)
White polypropylene woven bag with interior lamination;
Top and bottom discharge ports
1 MT Supersack (2,204.6 lbs)
Bulk Shipment Various Weights

* Only available for product shipped from Wilmington, DE.

Ask us about special requests for:
• Custom package types
• Flat-bottomed supersacks
• Custom fill weights
• Custom labeling

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