 
								
| Commodity | Standard Specification | |||
| Purity | Impurity (ICP-MS or GDMS Test Report, PPM Max each) | |||
| High Purity Boron | 3N | 99.9% | Fe 200, Au/Sn 30, Ag/Cu/Mn/Ca 20, Pb 1.0 | Total ≤1000 | 
| 4N | 99.99% | Ag/Au/Sn 0.3, Mg 0.01, Pb/Ca/Zn/Ni 0.2, Sn/Fe 0.3, Cu 0.1, Mn 7.0, Fe 11 | Total ≤100 | |
| 5N | 99.999% | Pb/Sn/Mn/Ag/Au/Sn/Pb/Ca/Zn/Ni 0.1, Fe 8 | Total ≤10 | |
| 6N | 99.9999% | Available upon request | Total ≤1.0 | |
| Size | 1-5mm, 1-10mm or 5-10mm irregular lump and 0.5-1.0mm powder | |||
| Packing | 1kg or 2kg in polyethylene bottle or sealed composite aluminum bag, carton box outside | |||
| Atomic No. | 5 | 
| Atomic Weight | 10.81 | 
| Density | 2.35g/cm3 | 
| Melting Point | 2300°C | 
| Boiling Point | 2550°C | 
| CAS No. | 7740-42-8 | 
| H.S Code | 2804.5000.90 |