N-(氨基甲酰甲基)亚氨基二乙酸

性状描述: 白色晶体粉末。
熔点：219℃（分解）
pH range 6.0 - 7.2
pKa (25 °C) 6.6

质量标准: 98%：

外观appearance                          white crystalline powder
可溶性solubility                       clear colorless，160mg/ml in 1N sodium hydroxide
红外光谱Infrared spectrometry           Conforms to Structure
干燥损失loss on drying                  ≤1%
重金属heavy metals(as lead)             ≤5ppm  
纯度Purity(Neutralization titration)    ≥98%


Ultra Pure, ≥99.0% (T)


外观appearance                          white crystalline powder
纯度Purity(Neutralization titration)    ≥99%
不溶物insoluble matter,                 passes filter test
灼烧残渣ign. residue                    ≤0.1%
干燥损失loss on drying, 20 °C (HV)     ≤0.5%
pH                                      1.5-3.0 (25 °C, 0.01 M in H2O)
useful pH range                         6.0 - 7.2
pKa (25 °C)                            6.6
水溶性solubility H2O:                   soluble0.05 M, clear, colorless
氯chloride (Cl-):                       ≤1000 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Al: ≤5 ppm
  As: ≤0.1 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
  Na: ≤500 ppm
  Ni: ≤5 ppm
  Pb: ≤5 ppm
  Sr: ≤5 ppm
  Zn: ≤5 ppm
λ 0.05 M in H2O
UV absorption λ: 260 nm A: ≤0.20
  λ: 280 nm A: ≤0.05

储存条件: 室温保存

用途: 生物缓冲剂