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REQUEST A QUOTE| Formula | Na2B8O13.4H2O |
| Boron | 20.5% min. |
| B2O3 | 67.5% min. |
| Na2O | 17.0% max. |
| Purity | 99.5% min. |
| Arsenic | 0.0001% max. |
| Lead | 0.0003% max. |
| Iron (as Fe2O3) | 0.0012% max. |
| Sulfate (as SO3) | 0.0001% max. |