AR

项目Item　　　　　　　　　　                            分析纯　　 
                                                                                   (AR)      
含量(CaHPO4·2H2O)Assay,%　　　               ≥ 99.0       
氨(NH3)Ammonia,%                                                ≤ 0.01       
镁(Mg)Magnesium,%                                               ≤ 0.02      
铁(Fe)Iron,%                                                          ≤ 0.0015    
重金属(以Pb计)Heavy metals,%                                ≤ 0.001     
砷(As)Arsenic,%                                                      ≤ 0.001   
盐酸不溶物lnsoluble in hydrochloric acid,%                 ≤ 0.005     
灼烧失重Ignition residue,%                                       24～26         
氯化物(Cl)Chloride,%                                               ≤ 0.005     
硫酸盐(SO4)Sulfate,%                                             ≤ 0.02      
硝酸盐(NO3)Nitrate                                                  合     格