• 氮川三乙酸 [139-13-9]

  • 英文名:Nitrilotriacetic acid
  • 别名:氨三乙酸、次氮基三乙酸、次氨基三乙酸、特里隆A
  • CAS号:139-13-9 分子式:C6H9NO6;N(CH2COOH)3 分子量:191.14
P176072-500g 氮川三乙酸 [139-13-9] 98% 500g 133.00 促销价:83.79
P176070-250g 氮川三乙酸 [139-13-9] 98% 100g 58.00 促销价:36.54
P176077-25g 氮川三乙酸 [139-13-9] 98% 25g 33.00 促销价:20.79
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P176072-500g 氮川三乙酸 [139-13-9] 98% 500g 133.00 83.79 登录可见
P176072-500g 氮川三乙酸 [139-13-9] 98% 500g 133.00 促销价:83.79
P176070-250g 氮川三乙酸 [139-13-9] 98% 100g 58.00 36.54 登录可见
P176070-250g 氮川三乙酸 [139-13-9] 98% 100g 58.00 促销价:36.54
P176077-25g 氮川三乙酸 [139-13-9] 98% 25g 33.00 20.79 登录可见
P176077-25g 氮川三乙酸 [139-13-9] 98% 25g 33.00 促销价:20.79
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

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

  

危险性质

  

用途及存储

络合剂,常用于钙、镁、铁等阳离子的测定,金属掩蔽剂。

  密封干燥保存。