性状 不溶于水，溶于酸。  

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                                 Faint Beige to Orange Powde
X-Ray Diffraction                               Conforms to Structure
纯度Purity                                        ≥99.9% Based On Rare Earth Analysis
ICP:                                                  Confirms Holmium Component Confirmed
Ho(Complexometric EDTA)                     86.0% - 88.6%  
痕量金属分析Trace Rare Earth Analysis    ≤2000ppm by ICP Atomic emission

99.99% metals basis:

外观Appearance                                   Off-White to Light Orange Powder
X-Ray Diffraction                                Conforms to Structure
纯度Purity                                          ≥99.99% Based On Rare Earth Analysis
ICP:                                                   Confirms Holmium Component Confirmed
Ho(Complexometric EDTA)                      86.0% - 88.6%  
痕量金属分析Trace Rare Earth Analysis     ≤200ppm by ICP Atomic emission
(Mg、Y、Ti、Zn、La、Sb、Nd)

99.9% metals basis,nanopowder, <100 nm particle size (BET):

外观Appearance                                   light orange to light red powder
X-Ray Diffraction                                Conforms to Structure
纯度Purity                                         ≥99.9% Based On Rare Earth Analysis
痕量金属分析Trace Rare Earth Analysis    ≤1000ppm by ICP Atomic emission
粒径particle size                                 <100 nm (BET)
粒径particle size                                 < 50 nm (XRD)  
贮存

用途 钬用于金属卤素灯添加剂、钇铁或钇铝石榴石的添加剂、光纤激光器、光纤放大器、光纤传感器等。用作各种石榴石的掺入剂，制造金属卤素灯等。

联合国编号

Risk：

Safety : S22- S24/25-

Hazard :