AR / CP

HG/T 3-1465-82
项目Item                                                分析纯 化学纯
                                                                (AR) (CP)
含量(C6H4O7N2)Assay%                             ≥99.0 98.0
氯化物(Cl)Chloride, %                                 ≤0.001 0.002
硫化合物(以SO4计)Sulfur compounds,   %    ≤0.005 0.01
磷化合物(以PO4计)Phosphours compounds,% ≤0.002 0.005
草酸盐(C2O4)Oxalate                                       合格 --
钙(Ca)Calcium, %                                       ≤0.005 0.02
铁(Fe)Iron,%                                            ≤0.0005 0.002
重金属(以Pb计)Heavy metals,%                   ≤0.0005 0.001
澄清度试验Clarity                                          合格 合格
水不溶物Insoluble matter in water,%             ≤0.005 0.01
灼烧残渣(以硫酸盐计)Ignition residue,%         ≤0.03 0.06

项目名称Item ACS Grade
含量[((NH4)2HC6H5O7)]Assay                      98.0-103.0%
重金属(以Pb计)Heavy metals(as Pb)              ≤0.00005%
铁(Fe)Iron(Fe)                                            ≤0.00002%
草酸盐(C2O4)Oxalate Passes test
磷酸盐(PO4)Phosphate                                 ≤5ppm
硫化合物(以SO4计)Sulfur compounds           ≤0.005%
水不溶物Insoluble matter                             ≤0.005%
灼烧残渣Residue after ignition                      ≤0.005%
氯化物(Cl)Chloride(Cl)                                 ≤0.0001%