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