10B in the form of Boric Acid for the Nuclear Industry
- Enriched Boric Acid for use as a chemical shim for excess neutron absorption in the primary circuit of PWRs using high burnup or MOX fuel cores.
- In these PWRs neutron absorption of natural Boric Acid is insufficient. Solubility of Boric Acid limits the boron concentration in primary circuit water to be used as neutron poison.
- Today more and more enriched Boric Acid (95 % enriched in 10B) is used by NPPs.
Specification
Physical Properties:
| Material | Boron-10 in form of crystalline Boric Acid |
| Enrichment | 10B > 96 at% |
Chemical Properties:
| Form | H3BO3 |
| Purity | ≥ 99,95 wt% |
Impurities in μg/g
| As | ≤ 0,5 |
| Ca | ≤ 1 |
| Cl | ≤ 5 |
| F | ≤ 1 |
| Na | ≤ 5 |
| Pb | ≤ 1 |
| PO4 | ≤ 1 |
| SO4 | ≤ 2 |
| Insolubles in water | ≤ 10 |