High Purity Cerium Carbonate

Code	CC-4N	CC-5N
Total amount of rare earth oxides %	≥48	≥48
Cerium purity and relative rare earth impurities
CeO₂/TREO %	≥99.99	≥99.999
La₂O₃/TREO %	≤0.004	≤0.002
Pr₆O₁₁/TREO %	≤0.002	≤0.002
Nd₂O₃/TREO %	≤0.002	≤0.001
Sm₂O₃/TREO %	≤0.001	≤0.001
Y₂O₃/TREO %	≤0.001	≤0.001
Non rare earth impurity
Ca%	≤0.0001	≤0.0001
Fe%	≤0.0001	≤0.0001
Na%	≤0.0001	≤0.0001
Mn%	≤0.0001	≤0.0001
Pb%	≤0.0001	≤0.0001
Al%	≤0.0001	≤0.0001
SiO₂%	≤0.001	≤0.0001
Cl^–%	≤0.002	≤0.002
SO₄^2-%	≤0.01	≤0.01
NTU	≤10	≤10
Oil content	After nitric acid dissolution, there is no obvious oil content on the solution surface

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