희토류 SPEC

(2) PE-3100 / Atomic absorption spectrophotometer CERIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code CeO2-040 CeO2-035A CeO2-035B CeO2-025 REO % ≥ 99 ≥ 98 ≥ 97.5 Purity and relative RE impurities CeO2 /REO % ≥ 99.99 ≥ 99.98 ≥ 99.95 ≥ 99.50 La2O3 /REO % ≤ 0.004 ≤ 0.01 ≤ 0.03 ≤ 0.1 (1) Pr6O11 /REO % ≤ 0.003 ≤ 0.015 Nd2O3 /REO % ≤ 0.001 ≤ 0.007 ≤ 0.05 ≤ 0.002 Sm2O3 /REO % ≤ 0.005 Y2O3 /REO % Non – RE impurities Fe2O3 % (2) SiO2 % CaO % ≤ 0.006 Cl - % ≤ 0.02 NaO % Loss on ignition % (1000oC,1hour) ≤ 1 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

Notes : (1) MPF-4 / Fluorescent spectrophotometer LANTHANUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code La2O3-05A La2O3-045A La2O3-045B REO % ≥ 99 Purity and relative RE impurities La2O3 /REO % ≥ 99.999 ≥ 99.995 CeO2 /REO % ≤ 0.0001 ≤ 0.0003 ≤ 0.001 ≤ 0.0002 (1) Pr6O11 /REO % ≤ 0.0005 (2) Nd2O3 /REO % Sm2O3 /REO % Y2O3 /REO % TB4O7 /REO % Non – RE impurities Fe2O3 % (3) SiO2 % ≤ 0.005 CaO % ≤ 0.0015 CuO % NiO % PbO % Cl - % ≤ 0.03 ≤ 0.05 Loss on ignition % (1000oC,1hour) ≤ 0.5 ≤ 1 Notes : (1) MPF-4 / Fluorescent spectrophotometer (2) ICP-AES/ Induction coupler plasma atomic emission spectrograph (3) PE-3100 / Atomic absorption spectrophotometer

(2) PE-3100 / Atomic absorption spectrophotometer PRASEODYMIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Pr6O11 -025 Pr6O11 -030 Pr6O11 -035 REO % ≥ 99 Purity and relative RE impurities Pr6O11 /REO % ≤ 99.5 ≤ 99.9 ≤ 99.95 La2O3 /REO % ≤ 0.01 ≤ 0.005 (1) CeO2 /REO % ≤ 0.05 ≤ 0.015 Sm2O3 /REO % Nd2O3 /REO % ≤ 0.2 ≤ 0.02 Y2O3 /REO % Non – RE impurities Fe2O3 % ≤ 0.004 (2) SiO2 % CaO % Cl - % Loss on ignition % (1000oC,1hour) ≤ 1 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

(2) PE-3100 / Atomic absorption spectrophotometer NEODYMIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Nd2O3-015 Nd2O3-020 Nd2O3-025 Nd2O3-030 Nd2O3-035 REO % ≥ 99 Purity and relative RE impurities Nd2O3 /REO % ≥ 98 ≥ 99.5 ≥ 99.9 ≥ 99.95 La2O3 /REO % 합계 ≤ 2 합계 ≤ 1 합계 ≤0.5 ≤ 0.01 (1) CeO2 /REO % Pr6O11 /REO % ≤ 0.05 ≤ 0.02 ≤ 0.03 Sm2O3 /REO % Y2O3 /REO % ≤ 0.005 Non – RE impurities Fe2O3 % ≤ 0.003 (2) SiO2 % CaO % Cl - % Al2O3 % ≤ 0.08 ≤ 0.07 ≤ 0.06 Loss on ignition % (1000oC,1hour) ≤ 1 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

Notes : (1) MPF-4 / Fluorescent spectrophotometer EUROPIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Eu2O3 -04P REO % ≥ 99 Purity and relative RE impurities Eu2O3 /REO % ≥ 99.99 CeO2 /REO % ≤ 0.0005 (1) Pr6O11 /REO % ≤ 0.001 (2) Nd2O3 /REO % Sm2O3 /REO % ≤ 0.002 Gd2O3 /REO % Tb4O7 /REO % Non – RE impurities Fe2O3 % (3) SiO2 % ≤ 0.003 CaO % NiO % PbO % CuO % ≤ 0.0006 ZnO % Cl - % ≤ 0.03 Loss on ignition % (1000oC,1hour) ≤ 1 d50 Medium diameter (power mass µm accumulating) 2.5 ~ 6.0 (4)(5) Notes : (1) MPF-4 / Fluorescent spectrophotometer (2) ICP-AES/ Induction coupler plasma atomic emission spectrograph (3) PE-3100 / Atomic absorption spectrophotometer (4) SKC-2000 / Particle size distribution analyzer (5) TA-I I / Coulter counter analyzer

(2) PE-3100 / Atomic absorption spectrophotometer DYSPROSIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Dy2O3-020 Dy2O3-025 Dy2O3-030 Dy2O3-035 REO % ≥ 99 Purity and relative RE impurities Dy2O3 /REO % ≥ 99.00 ≥ 99.50 ≥ 99.90 ≥ 99.95 Gd2O3 /REO % 합량 ≥ 1 in total 합량 ≥0.5 ≤ 0.005 (1) Tb4O7 /REO % ≤ 0.01 ≤ 0.008 Ho2O3 /REO % ≤ 0.007 Er2O3 /REO % Y2O3 /REO % Yb2O3 /REO % Non – RE impurities Fe2O3 % ≤ 0.02 ≤ 0.0015 (2) SiO2 % ≤ 0.05 ≤ 0.006 CaO % ≤ 0.004 CuO % ≤ 0.001 ≤ 0.0005 NiO % PbO % ≤ 0.002 Cl - % ≤ 0.03 Loss on ignition % (1000oC,1hour) ≤ 1 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

(2) MPF-4 / Fluorescent spectrophotometer YTTRIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Y2O3-04P Y2O3-05P REO % ≥ 99 Purity and relative RE impurities Y2O3 /REO % ≥ 99.99 ≥ 99.999 La2O3 /REO % ≤ 0.0002 < 0.0001 < 0.00005 (1) CeO2 /REO % ≤ 0.0001 < 0.0002 (1)(2) Pr6O11 /REO % ≤ 0.0005 Nd2O3 /REO % ≤ 0.0003 Sm2O3 /REO % Eu2O3 /REO % Gd2O3 /REO % Tb4O7 /REO % Dy2O3 /REO % < 0.0001 Ho2O3 /REO % Er2O3 /REO % Tm2O3 /REO % Yb2O3 /REO % Lu2O3 /REO % Non – RE impurities Fe2O3 % < 0.0003 (3) SiO2 % ≤ 0.005 < 0.003 CaO % ≤ 0.001 < 0.001 < 0.0006 CuO % < 0.0005 NiO % PbO % Cl - % < 0.03 < 0.005 Loss on ignition % (1000oC,1hour) ≤ 0.8 ≤ 0.5 d50 Medium diameter (power mass µm accumulating) 2.5 ~ 7 (4)(5) Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) MPF-4 / Fluorescent spectrophotometer (3) PE-3100 / Atomic absorption spectrophotometer (4) SKC-2000 / Particle size distribution analyzer (5) TA-I I / Coulter counter analyzer

YTTRIUM EUROPIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code (Y.Eu)2O3 -04P REO % ≥ 99 (Y2O3+Eu2O3)REO ≥ 99.99 Eu2O3 /REO % Upon the customer’s requirement (1) Tb4O7 /REO % La2O3 /REO % ≤ 0.0001 < 0.0001 CeO2 /REO % ≤ 0.0002 < 0.0002 (1)(2) Pr6O11 /REO % Nd2O3 /REO % Sm2O3 /REO % ≤ 0.0003 < 0.0003 Gd2O3 /REO % Dy2O3 /REO % Ho2O3 /REO % Er2O3 /REO % Tm2O3 /REO % Yb2O3 /REO % < 0.00005 Lu2O3 /REO % Non – RE impurities Fe2O3 % (3) SiO2 % ≤ 0.005 CaO % ≤ 0.0007 CuO % ≤ 0.0005 NiO % PbO % ≤ 0.001 Cl - % Loss on ignition % (1000oC,1hour) ≤ 0.8 d50 Medium diameter (power mass µm accumulating) 2.5 ~ 6.0 (4) Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) MPF-4 / Fluorescent spectrophotometer (3) PE-3100 / Atomic absorption spectrophotometer (4) TA-I I / Coulter counter analyzer

NEODYMIUM METAL Total RE % > 99 Purity Nd / RE % relative RE impurity La / RE % < 0.05 Ce / REO % < 0.03 Pr / RE % < 0.5 Sm / RE % Y / RE % < 0.02 Non – RE impurities Ca % Mg % Al % < 0.20 Si % Fe % < 0.3 Mo % C - %

(2) PE-3100 / Atomic absorption spectrophotometer GADOLINIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Gd2O3-04P Gd2O3-045P REO % ≥ 99 Purity and relative RE impurities Gd2O3 /REO % ≥ 99.99 ≥ 99.995 Nd2O3 /REO % ≤ 0.0005 (1) Sm2O3 /REO % ≤ 0.001 Eu2O3 /REO % ≤ 0.0002 ≤ 0.0001 Tb4O7 /REO % Dy2O3 /REO % Ho2O3 /REO % Y2O3 /REO % Non – RE impurities Fe2O3 % ≤ 0.0007 (2) SiO2 % ≤ 0.005 CaO % ≤ 0.002 NiO % PbO % CuO % ≤ 0.0006 ZnO % Cl - % ≤ 0.008 ≤ 0.006 Loss on ignition % (1000oC,1hour) ≤ 1 (power mass µm accumulating) 2.5 ~ 6.0 (3) Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer (3) TA-I I / Coulter counter analyzer

(2) PE-3100 / Atomic absorption spectrophotometer SAMARIUM OXIDE Iteme Specifications Typical analyses Analytical instruments Code Sm2O3-020 Sm2O3-025 Sm2O3-030 Sm2O3-035 REO % ≥ 99 Purity and relative RE impurities Sm2O3 /REO % ≥ 99.00 ≥ 99.50 ≥ 99.90 ≥ 99.95 Pr6O11 /REO % 합량 ≤ 1 in total 합량 ≤ 0.5 합량 ≤0.1 ≤ 0.005 (1) Nd2O3 /REO % ≤ 0.008 Eu2O3 /REO % Gd2O3 /REO % ≤ 0.03 Y2O3 /REO % ≤ 0.001 Non – RE impurities Fe2O3 % ≤ 0.01 ≤ 0.002 (2) SiO2 % Cl - % ≤ 0.05 ≤ 0.02 CaO % Loss on ignition % (1000oC,1hour) ≤ 1 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

(2) PE-3100 / Atomic absorption spectrophotometer CERIUM CARBONATE Iteme Specifications Typical analyses Analytical instruments Code Ce2(CO3)3 -02 -025 -030 -035 REO % ≥ 45 Purity and relative RE impurities CeO2 /REO % ≥ 99.00 ≥ 99.50 ≥ 99.90 ≥ 99.95 La2O3 /REO % ≤ 0.2 ≤ 0.1 ≤ 0.05 ≤ 0.03 ≤ 0.02 (1) Pr6O11 /REO % ≤ 0.01 ≤ 0.008 ≤ 0.005 Nd2O3 /REO % Sm2O3 /REO % Y2O3 /REO % ≤ 0.001 Non – RE impurities SiO2 % Fe2O3 % (2) CaO % ≤ 0.04 CuO % ≤ 0.002 Na2O % PbO % Cl - % SO42- % ≤ 0.09 PO43- % Loss on ignition % (1000oC,1hour) ≤ 55 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

(2) PE-3100 / Atomic absorption spectrophotometer YTTRIUM NITRATE Iteme Specifications Typical analyses Analytical instruments Code REO % ≥ 39 Purity and relative RE impurities Y2O3/REO % ≥ 99.99 La2O3 /REO % ≤ 0.0002 < 0.0002 (1) CeO2 /REO % Pr6O11 /REO % Nd2O3 /REO % Sm2O3 /REO % Eu2O3 /REO % Gd2O3 /REO % Tb4O7 /REO % Dy2O3 /REO % Ho2O3 /REO % Er2O3 /REO % Tm2O3 /REO % Yb2O3 /REO % < 0.00002 Lu2O3 /REO % Non – RE impurities Fe2O3 % ≤ 0.0005 (2) SiO2 % ≤ 0.002 < 0.002 CaO % ≤ 0.0015 < 0.0012 CuO % < 0.0005 NiO % PbO % Cl - % < 0.005 < 0.0004 총량 % ≥ 39.52 Notes : (1) ICP-AES/ Induction coupler plasma atomic emission spectrograph (2) PE-3100 / Atomic absorption spectrophotometer

DYSPROSIUM METAL Total RE % > 99 > 98 purity Dy /RE % ≥ 99.9 Iteme Specifications Total RE % > 99 > 98 purity Dy /RE % ≥ 99.9 > 99 relative RE impurity Gd /RE % < 0.1 합량 in total < 1.0 Tb /RE % Er /RE % Ho /RE % Y /RE % Non – RE impurity Fe % < 0.03 Si % < 0.02 < 0.05 Ca % Mg % Al % Ni % < 0.2 O2- % < 0.3 < 0.4 C % Ta(Nb,Mo,Ti) %