氧化物总量(TREO):≥46.35%

Ho₂O₃/TREO:≥99.95%

稀土杂质含量
RE  Impurities  Content(%)

非稀土杂质含量
Non-RE  Impurities  Content(Max %)

CeO₂:              0.008
La₂O₃:             0.005
Pr₆O₁₁:             0.006
Nd₂O₃:             0.008
Sm₂O₃:             0.005
Y₂O₃:              0.005
 

Fe₂O₃:      0.0008
SO₄^2-:       0.003
SiO₂:       0.0015
CaO:        0.002