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.
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 | |
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
SDS: Ulexite