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No	Items	Formula	TREO min%≤	Nom-RE impurities max%				Particle size
No	Items	Formula	TREO min%≤	Fe₂O₃≤	SiO₂≤	CaO≤	Cl% ≤	Particle size
1	YTTRIUM OXIDE	Y₂O₃	99.99%	0.001	0.005	0.0025	0.01	2.0-3.0
			99.99%	0.001	0.005	0.0025	0.01	0.3-0.5
			99.99%	0.001	0.005	0.0025	0.01	0.8-1.0
			99.999%	0.0003	0.003	0.0008	0.005	3.0-5.0
2	Lanthanum Oxide	La₂O₃	99.9%	0.03	0.05	0.8	0.3	3.0 - 5.0
2	Lanthanum Oxide	La₂O₃	99.5%	0.006	0.0035	0.0065	0.239	3.0 - 5.0
3	Cerium Oxide	CeO₂	99.99%	0.001	0.005	0.008	0.035	2.0 - 3.0
4	Praseodymium Oxide	Pr₆O₁₁	99.95%	0.0007	0.01	0.01	0.030
			99.9%	0.0016	0.001	0.0023
			99.99%	0.0002	0.0005	0.001
5	Neodymium Oxide	Nd₂O₃
6	Samarium Oxide	Sm₂O₃
7	Europium Oxide	Eu₂O₃
8	Gadolinium Oxide	Gd₂O₃
9	Terbium Oxide	Tm₂O₃
10	Dysprosium Oxide	Dy₂O₃	99.5%	0.01	0.01	0.018	0.015
11	Holmium Oxide	Ho₂O₃
12	Erbium Oxide	Er₂O₃	99.9%	0.0010	0.001	0.0033	0.02
12	Erbium Oxide	Er₂O₃	99.99%	0.0005	0.0005	0.0005	0.006
13	Thulium Oxide	Tm₂O₃
14	Ytterbium Oxide	Yb₂O₃	99%
			99.5%
			99.9%
			99.99%
15	Lutetium Oxide	Lu₂O₃
16	ZIRCONIUM OXIDE	ZrO₂	99%
			99.5%
			99.9%
17	Zinc oxide		99.8%
18	AL₂O₃		99.99%	1㎛
19	ATO		6㎚
19	ATO		20㎚