AR

项目Item　　　　　　　　　　　　  　        分析纯　　　　化学纯
          (AR)                    (CP)
含量[Ca(H2PO4)2•H2O]Assay,%                     ≥ 92.0                   90.0
盐酸不溶物Insoluble in hy-
酸度(H3PO4)Acidity,%                                    ≤ 7.8                     9.8
镁(Mg)Magnesium,%                                       ≤ 0.05                   0.04
铁(Fe)lron,%                                                   ≤ 0.01                    --
砷(As)Arsenic,%                                              ≤ 0.0005               0.002
氨(NH3)Ammonia,%　　　　　　　       　     ≤ 0.01                     --
重金属(以Pb计)Heavy metals,%                      ≤ 0.002                 0.002
drochloride acid,%                                           ≤ 0.015               0.03
氯化物(Cl)Chloride,%                                       ≤ 0.005                0.01
硫酸盐(SO4)Sulfale,%                                      ≤ 0.02                  0.03
硝酸盐(NO3)Nitrate                                          合格　　　　   　 --