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| Product Name | Erbium, foil, thickness 1 mm, 99.9% (rare earth, metals basis) |
| Product Number | 693685 |
| Product Brand | Aldrich |
| CAS Number | 7440-52-0 |
| Molecular Formula | Er |
| Molecular Weight | 167.26 |
| TEST | SPECIFICATION |
| APPEARANCE | DARK GREY FOIL |
| TRACE ANALYSIS, ICP | 2000 PPM (MAXIMUM) RARE EARTH IMPURITIES |
| ICP ASSAY | CONFIRMS ERBIUM COMPONET |
| PARTICLE SIZE | 25 MM X 25 MM +/- 0.5 MM, X 1 MM +/- 0.05 MM |
| PURITY | PURITY BASED ON RARE EARTH ANALYSIS |
| APPROVED DECEMBER 6, 2007 LUKE GROCHOLL | |
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