El código
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Colocar-3.5N
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Colocar-4N
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El Treo%
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≥ 65,5
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≥ 66,2
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El cerio pureza y las impurezas de la tierra rara relativa
|
||
La2O3/TREO %
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≥99,95
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≥99.99
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CeO2/TREO %
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≤ 0.030
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≤0.0040
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Pr6O11/TREO %
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≤ 0.010
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≤0,0020
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Nd2O3/TREO %
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≤ 0.010
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≤0,0020
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Sm2O3/TREO %
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≤0.0050
|
≤0.0010
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Y2O3/Treo %
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≤ 0.005
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≤0.0010
|
La tierra rara no impureza
|
||
CaO
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≤0,01
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≤ 0.005
|
Fe2O3 %
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≤ 0.005
|
≤ 0.002
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Na2O%
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≤0,01
|
≤ 0.005
|
K2O %
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≤ 0.003
|
≤ 0.001
|
PbO %
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≤ 0.003
|
≤ 0.001
|
H2O%
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≤0.8
|
≤0.5
|