性状  灰色到灰黑色无定形细粒或粉末，有极微光泽，能溶于稀酸，不溶于水，暴露于空气和湿气中易氧化。
密度：7.86
熔点：1535 ºC
沸点：3000 ºC
   
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  
   项目Item                                         分析纯    化学纯
                                                  (AR)      (CP)
含量(Fe)Assay,%                                 ≥ 99.0     98.0
硫酸不溶物Insolution matter in sulfuric acid,%  ≤ 0.1      0.5
水溶物Soluble matter in water,%                 ≤ 0.03     0.1
硫化合物(以SO4计)Sulfur compounds               ≤ 0.06     0.15
氮化合物(以N计)Nitrogen compound,%              ≤ 0.005    0.01
铜(Cu)Copper,%                                  ≤ 0.005    0.02

项目Item                                          99.99 %
 
外观Appearance                                  Grey powder
X射线衍射X-Ray Diffraction                      Conforms to Structure
痕量金属Trace Metal Analysis                    ≤100.0 ppm
纯度Purity                                      ≥99.99% Based On Trace Metals Analysis

项目Item                                          99.9%，50nm
 
外观Appearance                                  Grey powder
X射线衍射X-Ray Diffraction                      Conforms to Structure
痕量金属Trace Metal Analysis                    ≤1000.0 ppm
纯度Purity                                      ≥99.9% Based On Trace Metals Analysis
粒度Particle size                               ≤50 nm

项目Item                                          99.9%，80nm
 
外观Appearance                                  Grey powder
X射线衍射X-Ray Diffraction                      Conforms to Structure
痕量金属Trace Metal Analysis                    ≤1000.0 ppm
纯度Purity                                      ≥99.9% Based On Trace Metals Analysis
粒度Particle size                               ≤80 nm

贮存  密封干燥处保存
用途  还原剂,电子工业。
联合国编号  1383/3089
Risk：  R11
Safety :  S16
Hazard :  F