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Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Give us a call +86 -755-25432352
Email us info@urbanmines.com
Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Formula:(NH4)₄Ce(SO₄)4·XH₂O CAS:7637-03-8
Mol.wt.596.52 (anhydrous basis) Cerium(IV)Ammonium Sulfate Hydrate
Specification
| Code | S-3.5N | S-4N |
| TREO% | ≥28 | ≥28 |
Cerium purity and relative rare earth impurities
| CeO₂/TREO % | ≥99.95 | ≥99.99 |
| La₂O₃/TREO % | <0.02 | <0.004 |
| Pr₆O11/TREO % | <0.01 | <0.002 |
| Nd₂O₃/TREO % | <0.01 | <0.002 |
| Sm₂O₃/TREO % | <0.005 | <0.001 |
| Y₂O₃/TREO% | <0.005 | <0.001 |
Non rare earth impurities
| Ca % | <0.002 | <0.001 |
| Fe % | <0.002 | <0.001 |
| Na % | <0.002 | <0.001 |
| K % | <0.001 | <0.0005 |
| Pb % | <0.002 | <0.001 |
| AI % | <0.002 | <0.001 |
| CI- % | <0.005 | <0.005 |
| NTU | <20 | <10 |
Description
Orange-red crystals, highly soluble in water,stable in acidic solutions,and the aqueous solution is strongly acidic.
Uses
Mainly used in redox titration (cerium method),as a strong oxidizing standard reagent to detemine reducing substances such as Fe²+and F,and can also be used in organic synthesis oxidation reactions and the preparation of rare earth materials.
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