项目Item 分析纯(AR) 化学纯(CP)
含量[Cr(NO3)3·9H2O]Assay,% ≥ 99.0 98.0
水不溶物Insoluble matter in water,% ≤ 0.005 0.02
氯化物(Cl)Chloride,% ≤ 0.005 0.01
硫酸盐(SO4)Sulfate,% ≤ 0.01 0.02
钠(Na)Sodium,% ≤ 0.05 0.1
铝(Al)Aluminum,% ≤ 0.02 0.05
钾(K)Potassium,% ≤ 0.05 0.1
钙(Ca)Calcium,% ≤ 0.005 0.01
铁(Fe)Iron,% ≤ 0.005 0.01
99.95% metals basis:
外观Appearance Black Crystals
X-射线衍射分析X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.95% Based on Trace Metals Impurities of ICP
铬Chromium(Titration by Na2S2O3) 12.7- 13.2 %
ICP Major Analysis Confirmed Confirms Chromium Component
痕量金属分析total metallic impurities ≤500ppm by ICP Atomic emission
99.99% metals basis:
外观Appearance Black Crystals
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
铬Chromium(Titration by Na2S2O3) 12.7- 13.2 %
ICP Major Analysis Confirmed Confirms Chromium Component
痕量金属分析total metallic impurities ≤100ppm by ICP Atomic emission |
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