Scandium Oxide Powder (GB/T 13219-2018)

Scandium Oxide Powder (Sc₂O₃)

Scandium oxide powder (Sc₂O₃) - ( GB/T 13219-2018 ) Standard
product number	Product		Sc₂0₃-5N5	Sc₂0₃-5N	Sc₂0₃-4N	Sc₂0₃-3N5	Sc₂0₃-3N
product number	Product Code		161055	161050	161040	161035	161030
Chemical composition (mass fraction)%	Sc₂0₃ (not less than)		99.99	99.9	99.9	99.0	99.0
	Sc₂O₃/REO (not less than)		99.9995	99.999	99.99	99.95	99.99
	Impurity content (not greater than)	rare earths	0.00050	0.0010	0.010	0.050	0.10
		SiO2	0.0010	0.0015	0.0020	0.010	0.020
		Fe2O3	0.00050	0.00050	0.0010	0.0050	0.020
		CaO	0.0010	0.0015	0.0030	0.015	0.030
		MgO	0.00050	0.00050	0.00050	0.010	0.015
		Al203	0.00050	0.00050	0.0010	0.0030	0.050
		TiO2	0.0010	0.0030	0.0050	0.010	0.050
		ZrO2	0.00050	0.0015	0.0030	0.030	0.10
		ThO2	0.00050	0.0010	0.0050	0.010	0.030
		CuO	0.00050	0.0010	0.0020	0.0050	0.010
		V205	0.00050	0.00050	0.00050	0.0020	0.0050
		Na20	0.00050	0.00050	0.0010	0.010	0.010
		NiO	0.00050	0.00050	0.00050	0.010	0.010
	Scorch reduction and moisture (mass fraction) % not significant		1.0	1.0	1.0	1.0	1.0
“Rare earth impurities” means the total amount of rare earth elements excluding the main rare earth elements Sc and Pm.
In this standard, REO is a general term for Sc₂O₃, and rare earth impurities.