N-氨基甲酰甲基乙磺酸

N-氨基甲酰甲基乙磺酸 基本信息：

说明介绍：

质量标准  
  99%:
外观Appearance                          White Crystalline Powder
纯度Purity by Titration by NaOH         ≥99.0 %
水溶性Solubility                        Colorless Clear ,5 g plus 95 ml of H2O
红外光谱Infrared spectrum               Conforms to Structure
干燥失重Loss on Drying                  ≤1.0 %
A290 UV absorbance                      ≤0.02
  （c = 5% w/w）
重金属Heavy Metals （As Lead）            ≤5 ppm
Ultra pure,≥99.5% （T）:
外观Appearance                         White Crystalline Powder
纯度Purity                             ≥99.5% （T）
不溶物insoluble matter,                passes filter test
灼烧残渣Residue on ignition （900 °C）  ≤0.05%
干燥损失loss on drying, 20 °C （HV）    ≤0.5%
pH                                    3.0-4.5 （25 °C, 0.1 M in H2O）
useful pH range                       6.1 - 7.5
pKa （25 °C）                          6.8
水溶性solubility H2O:                 soluble0.1 M at 20 °C, clear, colorless
氯chloride （Cl-）:                     ≤250 ppm
硫酸根sulfate （SO42-）:                ≤50 ppm
  Al:                                 ≤10 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:                                 ≤50 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:           ≤0.008
  λ: 280 nm A:                       ≤0.005
贮存 
用途 生物缓冲剂，ACES是两性离子缓冲剂，饱和溶液为0.22M（0℃）。ACES结合Cu2+,但不能结合Mg2+,Ca2+或Mn2+

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