Ceric Ammonium Nitrate (CAN) is the inorganic compound with the formula (NH4)2Ce(NO3)6. This orange-red, water-soluble cerium salt is widely used as an oxidizing agent in organic synthesis and as a standard oxidant in quantitative analysis.
The anion [Ce(NO3)6]2− is generated by dissolving Ce2O3 in hot concentrated HNO3. This salt consists of the anion [Ce(NO3)6]2− and a pair of NH4+ counter ions. The ammonium ions are not involved in the oxidizing reactions of this salt. In the anion each nitrato group is chelated to the cerium atom in a bidentate manner.
Cerium (IV) ammonium nitrate ((NH4)2Ce(NO3)6) is a one-electron oxidizing agent that is used for oxidative addition reactions of electrophilic radicals to alkenes, enabling intermolecular and intramolecular carbon-carbon and carbon-heteroatom bond formation. CAN also oxidizes secondary alcohols into ketones and benzylic alcohols into aldehydes.
Cerium Ammonium Nitrate (CAN), is the important material for making Chrome etchant which is a very important micro electronic circuit corroding materials for LCD; CAN is also applied in specialty glass and catalyst.
Specifications of Ceric Ammonium Nitrate Analytical Reagent Grade:
(NH4)2Ce(NO3)6 --- Formula Weight 548.22
CAS Number 16774-21-3
REQUIREMENTS
Assay: 98.5% (NH4)2Ce(NO3)6
MAXIMUM ALLOWABLE
Insoluble in dilute sulfuric acid: 0.05%
Chloride (Cl): 0.01%
Phosphate (PO4): 0.02%
Iron (Fe): 0.005%
| Grade | 1 ----------- 2 ---------- 3 |
| purity | 99.99% --- 99.95% --- 99.90% |
| Rare Earth Impurities: | %max ---- %max ---- %max |
| La2O3/TREO | 0.001 ----- 0.0005 ---- 0.05 |
| Pr6O11/TREO | 0.001 ----- 0.0005 ---- 0.05 |
| Nd2O3/TREO | 0.001 ----- 0.0005 ---- 0.01 |
| Sm2O3 | 0.001 ----- 0.0005 --- 0.01 |
| Y2O3/TREO | 0.001 ----- 0.0005 ---- 0.01 |
| Non-Rare Earth Impurities | %max ---- %max ---- %max |
| Fe | 0.0001 ---- 0.0003 ---- 0.0005 |
| Ca | 0.0001 ---- 0.0003 ---- 0.0005 |
| Co | 0.0001 ---- 0.0003 ---- 0.0005 |
| Cu | 0.0001 ---- 0.0003 --- 0.0005 |
| K | 0.0001 ---- 0.0003 ---- 0.0005 |
| Na | 0.0001 ---- 0.0003 ---- 0.0005 |
| Ni | 0.0001 ---- 0.0003 ---- 0.0005 |
| Pb | 0.0001 ---- 0.0003 ---- 0.0005 |
| Cl | 0.0001 ---- 0.0003 ---- 0.0005 |
| SO4 | 0.005 ----- 0.005 ------ 0.01 |
