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| Product Name | Erbium(III) oxide, 99.9% trace metals basis |
| Product Number | 289248 |
| Product Brand | Aldrich |
| CAS Number | 12061-16-4 |
| Molecular Formula | Er2O3 |
| Molecular Weight | 382.52 |
| TEST | SPECIFICATION |
| APPEARANCE | PINK POWDER |
| X-RAY DIFFRACTION | CONFORMS TO STANDARD PATTERN. |
| OR | |
| ICP ASSAY | CONFIRMS ERBIUM COMPONENT. |
| TITRATION | 86.1% - 88.8% ER (COMPLEXOMETRIC) |
| TRACE ANALYSIS, ICP | 2000 PPM (MAXIMUM) RARE EARTH IMPURITIES |
| PURITY BASED ON TRACE METALS ANALYSIS | |
| APPROVED JULY 1, 1997 JSB | |
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