氮川三乙酸 /139-13-9

白色结晶状粉末，不溶于水，溶于氨水或氢氧化物的溶液中，溶于大多数有机溶剂。水中溶解度:1.28 g/L (22.5°C)。 熔点: 245℃
质量标准
  

HG/T 3-1299-80
项目Item                                                   分析纯
                                                            (AR)
含量(C₆H₉NO₆)Assay,%                                     ≥ 98.5
络合力试验Compiex test                                      合格
氨水中溶解试验Solubility in ammonia solution                合格
灼烧残渣（以硫酸盐计）Ignition residue,%                 ≤ 0.10
氯化物(Cl)Chloride,%                                     ≤ 0.002
硫酸盐(SO₄)Sulfate,%　                                   ≤ 0.002
铁（Fe)Iron,%                                            ≤ 0.002
铜(Cu)Copper,%                                           ≤ 0.0005



项目名称Item                                            ACS Grade
含量assay                                                ≥99.0% (T) 
灼烧残渣Residue on ignition                              ≤0.1% (as SO4) 
干燥损失loss on drying                                   ≤0.1% 
氯chloride (Cl-):                                        ≤100 ppm 
cation traces by ICP Atomic emission 
  Ca:                                                    ≤10 ppm 
  Cd:                                                    ≤5 ppm 
  Co:                                                    ≤5 ppm 
  Cr:                                                    ≤5 ppm 
  Cu:                                                    ≤5 ppm 
  Fe:                                                    ≤7 ppm 
  K:                                                    ≤50 ppm 
  Mg:                                                    ≤5 ppm 
  Mn:                                                    ≤5 ppm 
  Na:                                                    ≤500 ppm 
  Ni:                                                    ≤5 ppm 
  Pb:                                                    ≤5 ppm 
  Zn:                                                    ≤5 ppm