HG/T　3-931-76
项目Item                                            分析纯　    化学纯
                                                     (AR)        (CP)
含量［Cu(NO₃)₂·3H₂O］Assay,%                       ≥99.5       99.0
水溶液反应Solution reaction                           合格       合格
水不溶物Insoluble matter in water,%                 ≤0.002      0.005
硫酸盐(SO4)Sulfate,%                                ≤0.005      0.02
铁(Fe)Iron,%                                        ≤0.002      0.01
硫化铵不沉淀物(以硫酸盐计)Substances not        
precipitated by ammonium sulfide,%                  ≤0.05       0.1

ACS级
项目名称Item                                       ACS Grade
含量[Cu(NO₃)₂·3H₂O]Assay                           98.0-102.0%
水不溶物Insoluble matter                            ≤0.01%
氯化物(Cl)Chloride(Cl)                              ≤0.002%
硫酸盐(SO4)Sulfate                                  ≤0.01%
钙(Ca)Calcium(Ca)                                   ≤0.005%
铁(Fe)Iron(Fe)                                      ≤0.005%
铅(Pb)Lead(Pb)                                      ≤0.001%
镍(Ni)Nickel(Ni)                                    ≤0.01%
钾(K)Potassium(K)                                   ≤0.005%
钠(Na)Sodium(Na)                                    ≤0.01%