氟化钙/7789-75-5

等轴晶系，晶体多呈立方体、八面体或由其组成的聚形。颜色多为黄色、绿色、蓝色、紫色或白色及玫瑰等色。 不溶于水，能溶于硫酸、磷酸和热的盐酸及硼酸、次氯酸。 熔点 1402 °C 沸点 2500 °C(lit.) 密度 3.18 g/mL at 25 °C(lit.) 折射率 1.434 闪点 2500°C
质量标准
  

Q/(HG)SJ 099-91
项目ltem                                        化学纯    分析纯
        　(CP)     (AR)
含量(CaF₂)Assay,%                    ≥ 98.0    ≥99.5
干燥失重Loss on drying,%          ≤ 0.6     ≤0.4 
氯化物(Cl)Chloride,%                    ≤ 0.02    ≤0.01
硫酸盐(SO₄)Sulfate,%                   ≤ 0.15    ≤0.05
总氮量(N)Total nitrogen,%            ≤ 0.02    ≤0.005
碳酸盐Carbonte                               合格    合格
铁(Fe)lron,%                                      ≤ 0.025   ≤0.003
氟硅酸盐(以Si计)Fluosilicate,%    ≤ 0.04    ≤0.01
重金属(以Pb计)Heavy metals,%      ≤ 0.01    ≤0.003



99.99% metals basis:


外观Appearance                          White Powder
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
ICP:                                    Confirms Calcium Component Confirmed 
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission
(Sr、Ba、Zr、Hf、Ce、Si)



品级Grade                               光谱纯   
                (random crystals, optical grade, 99.99% trace metals basis) 
外观Appearance                          Colorless or White Crystals and/or Chunks
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
钙Calcium(Complexometric EDTA)          50.8- 51.8 %
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission