99.9% Granular
| mpurities (typical vahues) | |||
| Boric Acid | H3BO3 | % | ≥ 99.9 |
| Boric Oxide | B2O3 | % | ≥ 56.25 |
| Sulphate | CI | ppm | 200 |
| Chloride | Fe2O3 | ppm | <4 |
| MGO | Na | ppm | 280 |
| Moisture | H2O | % | <0.03 |
| Sulphate | SO4 | ppm | 300 |
| U.S.Standard Sieve (ASTM E11-87) | Sieve Opening (Microns) | Retained (Percent) | Cumulative (Percent) |
| 40 | 435 | 3.8 | 3.8 |
| 100 | 150 | 68.0 | 71.8 |
| 200 | 75 | 25.0 | 96.8 |
| 325 | 45 | 2.7 | 99.5 |
| -325 | -45 | 0.5 | 100 |