性状：能溶于水，几乎不溶于乙醇、乙醚，其水溶液pH值约为5.10。

备注: 以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。

质量标准：

GB/T 1401-85
项目Item　　　　　　　                        优级纯　　　 分析纯　    化学纯
                                                           (GR)            (AR)          (CP)
含量Assay,%  　                                    ≥99.0    　     98.0   　    97.0
水溶液反应Water solution reaction　          合格　　　　 合格　　　 合格
络合力试验Complex test                           合格　　　    合格　　    合格
澄清度试验Clarity　　　                         合格　　　    合格　　    合格
氯化物(Cl)Chloride,%                             ≤0.004　　　  0.005　      0.02
硫酸盐(SO₄)Sulfate,%　　                        ≤0.01　　　    0.02　        0.1
氨基三乙酸(C₆H₉NO₆)Nitrilotriacetic acid,%　 ≤0.05　　　     --　         --
铁(Fe)Iron,% 　　　　　                       ≤0.0005           0.001        0.005
铜(Cu)Copper,%                                   ≤0.00025             --            --
重金属(以Pb计)Heavy metals,%　             ≤0.001           0.001         0.005

ACS级
项目名称　                                                       ACS Grade
含量(C₁₀H₁₄N₂Na₂O₈·2H₂O)Assay                           99.0-101.0%
pH值(5%溶液,25.0℃)pH of a 5% solution at 25.0℃   4.0-6.0
水不溶物Insoluble matter                                    ≤0.005%
氨基三乙酸
[(HOCOCH₂)₃N]Nitrilotriacetic acid                       ≤0.1%
重金属(以Pb计)Heavy metals                               ≤0.005%
铁(Fe)Iron                                                        ≤0.01%

品级Grade                                      分子生物学和电泳级，99%  
                          (for electrophoresis, for molecular biology, 99.0%(titration))
外观Appearance                                      White Powder
溶解性Solubility                           Colorless Clear,16 g + 100 mL 3 M NaOH
干燥损失Loss on Drying                             7 - 11 %
铁Iron (Fe)                                             ≤ 0.005 %
铅Lead (Pb)                                            ≤ 0.002 %
不溶物Insoluble matter                             ≤ 0.005 %
氮川三乙酸Limit of Nitrilotriacetic Acid      ≤ 0.1 %
纯度Purity Titration by EDTA                    99.0 - 101.0 %
电泳测试electrophoresis test                        pass
DNA酶DNases,                                      none detected
RND酶RNases,                                      none detected
不溶物insoluble matter,                         passes filter test
磷酸酶phosphatases,                              none detected
蛋白酶proteases,                                   none detected

品级Grade                                  色谱级，≥99.0%  
                                             (for HPLC, ≥99.0%)
纯度Purity                                    ≥99.0% (KT)
不溶物insoluble matter,                  passes filter test
水溶性solubility H2O:          soluble0.1 M, clear, colorless
氯chloride (Cl-):                        ≤50 ppm
硫酸根sulfate (SO42-):             ≤50 ppm
  Al:                                        ≤5 ppm
  Ba:                                        ≤5 ppm
  Bi:                                        ≤5 ppm
  Ca:                                        ≤10 ppm
  Cd:                                        ≤5 ppm
  Co:                                        ≤5 ppm
  Cr:                                        ≤5 ppm
  Cu:                                        ≤5 ppm
  Fe:                                        ≤5 ppm
  K:                                        ≤50 ppm
  Li:                                        ≤5 ppm
  Mg:                                       ≤5 ppm
  Mn:                                       ≤5 ppm
  Mo:                                       ≤5 ppm
  Ni:                                       ≤5 ppm
  Pb:                                       ≤5 ppm
  Sr:                                       ≤5 ppm
  Zn:                                      ≤5 ppm
λ                                         0.1 M in H2O
UV absorption λ: 260 nm A:      ≤0.15
  λ: 270 nm A:                           ≤0.05
  λ: 280 nm A:                           ≤0.03
  λ: 290 nm A:                           ≤0.02
  λ: 500 nm A:                           ≤0.02
RP gradient test                         corresponds for standard

品级Grade                                       植物细胞培养级，≥99.0%  
                                                (for plant cell culture，≥99.0%)  
外观Appearance                                       White Powder
水溶性Solubility                                 Clear to Very Slightly Hazy
16 g + 100 mL, 3 M NaOH
干燥损失Loss on Drying                              7- 11 %
纯度Purity Titration by EDTA                     99.0 - 101.0 %
钠Sodium (Na) by ICP                               11.0- 12.6 %
植物细胞培养测试Plant Cell Culture Test           Pass

贮存：密封保存。

用途：络合剂，钙、镁及其他金属试剂，金属掩蔽剂。乙二胺四乙酸二钠是一种重要络合剂，用于络合金属离子和分离金属。

联合国编号

Risk： R36/38-

Safety : S26 - S37/39 –

Hazard : Xi -