Ulexite
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Ground Ulexite, also known as Sodium Calcium Penta-borate Octahydrate, is a white, free flowing powdered material. It is a naturally occurring borate ore that is minimally processed and ground to meet manufacturing specifications for different particle sizes. Upon melting, Ulexite forms a clear melt with smooth flow properties that are ideal for particular applications.

Ulexite 2-4 mm is a greyish granular material for use in agricultural applications as a source of slow-release boron.  This product is suitable for direct application to soil/crops or as part of a fertilizer blend.


Ulexite
2-4 mm (Agriculture grade) - Specifications

Typical properties of Ulexite are as follows:

Property Typical Value (Ground) Typical Value (Ag Grade)
Appearance Powder Granular
Color Greyish White Greyish White
Typical Composition
Powder Ag Grade
B2O3 37.0% 34.0%
CaO 18.0% 20.0%
Na2O 4.0% 4.0%
SiO2 3.0% 4.0%
Al2O3 0.1%
SrO 0.6%
MgO 1.6%
SO4 0.2%
Fe2O3 0.02%
Loss On Ignition (LOI) 34.0%
Arsenic 30 ppm 30 ppm
Moisture 0.2%

 

Dry Sieve Analysis
Metric Mesh Standard Ground Fine Ground Ag Grade
(+)4.0 mm +5 0.0% 0.0% 0.0%
(+)2.0 mm +10 0.0% 0.0% 100%
(+)600 µm +30 0.0% 0.0% N/A
(+)250 µm +60 0.3% 0.0% N/A
(-)45 µm -325 76% 84% N/A
  • Agriculture
  • Glass and fiberglass
  • Oilfield
  • Ceramics
  • Other Applications:
    • Pulp and paper

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

Standard Packaging and Weights – Ulexite
Package Type Standard and Fine Mesh Ulexite
White polypropylene woven bag with interior lamination;
Top and bottom discharge ports
1 MT Supersack (2,204.6 lbs)
Bulk Shipment Various weights

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

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