性状 不溶于水,能溶于无机酸。在空气中较易吸收水分和二氧化碳。
备注: 以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。
质量标准
99.9% metals basis:
外观Appearance White Powder
X-射线衍射分析X-Ray Diffraction Conforms to standard
纯度Purity ≥99.9% Based on Trace Rare Earth Analysis of ICP
ICP: Confirms Gadolinium Component Confirmed
钆Gd ≥84.2 % (Complexometric EDTA)
痕量稀土分析Trace Rare Earth Analysis ≤2000ppm by ICP Atomic emission
(Na、K、Rb、Cs、Mg、Ca、Sr、Ag、Ba、Y、Tb、Hf、La、Dy、B、Al、Ce、Ho、Si、W、Pb、Pr、Er、Mn、Re、Nd、Tm、Fe、Os、Sm、Ir、Eu)
99.99% metals basis:
外观Appearance White Powder
X-射线衍射分析X-Ray Diffraction Conforms to standard
纯度Purity ≥99.99% Based on Trace Rare Earth Analysis of ICP
ICP: Confirms Gadolinium Component Confirmed
钆Gd ≥84.2 % (Complexometric EDTA)
痕量稀土分析Trace Rare Earth Analysis ≤100ppm by ICP Atomic emission
(Na、K、Rb、Cs、Mg、Ca、Sr、Ag、Ba、Y、Tb、Hf、La、Dy、B、Al、Ce、Ho、Si、W、Pb、Pr、Er、Mn、Re、Nd、Tm、Fe、Os、Sm、Ir、Eu)
99.8% metals basis,<50 nm (XRD) :
外观Appearance White Powder
X-射线衍射分析X-Ray Diffraction Conforms to standard
纯度Purity ≥99.8% Based on Trace Rare Earth Analysis of ICP
ICP: Confirms Gadolinium Component Confirmed
钆Gd ≥84.2 % (Complexometric EDTA)
颗粒particle size <100 nm (BET)
颗粒particle size <50 nm (XRD)
痕量稀土分析Trace Rare Earth Analysis ≤3000ppm by ICP Atomic emission
(Na、K、Rb、Cs、Mg、Ca、Sr、Ag、Ba、Y、Tb、Hf、La、Dy、B、Al、Ce、Ho、Si、W、Pb、Pr、Er、Mn、Re、Nd、Tm、Fe、Os、Sm、Ir、Eu)
贮存
用途 用于各种荧光粉,原子反应堆中的中子吸收材料,磁泡材料,增感屏材料。在光学玻璃、电子工业等方面也有一定的用途,也用作钆镓石榴石材料。
联合国编号
Risk: R36-
Safety : S26- S39-
Hazard : Xi -