生產(chǎn)廠家，大量?jī)?yōu)質(zhì)現(xiàn)貨。可提供符合客戶要求的包裝規(guī)格。

無色透明、易燃易揮發(fā)液體。有酒的氣味和刺激性辛辣味。 溶于水、甲醇、乙醚和氯仿。能溶解許多有機(jī)化合物和若干無機(jī)化合物。
熔點(diǎn)  -114°C
沸點(diǎn)  78°C
密度  0.79
折射率  1.3614
FEMA  2419
閃點(diǎn)  12°C

品級(jí)Grade                                分子生物學(xué)專用
                                  (for molecular biology, ≥99.8%)
含量assay                                   ≥99.8%
DNA酶DNases,                                none detected
高錳酸鉀還原物質(zhì)KMnO4-reducing substances,  in accordance
RNA酶RNases,                                none detected
不溶物insoluble matter,                     passes filter test
磷酸酶phosphatases,                         none detected
蛋白酶proteases,                            none detected
遇硫酸變黑物質(zhì)substances darkened by H2SO4, in accordance
游離堿free alkali (as NH3)                  ≤0.0004%  
醛aldehyde (as CH3CHO)                      ≤0.001%  
甲醛formaldehyde (as HCHO)                  ≤0.001%
酮ketone (as CH3COCH3)                      ≤0.001%
游離酸free acid (as CH3COOH)                ≤0.002%
甲醇methanol (CH3OH)                        ≤0.1%  
水分water                                   ≤0.02%
蒸發(fā)殘?jiān)黣vapn. residue                      ≤0.001%
  Al:                                       ≤0.5 ppm
  Ba:                                       ≤0.1 ppm
  Bi:                                       ≤0.1 ppm
  Ca:                                       ≤0.5 ppm
  Cd:                                       ≤0.05 ppm
  Co:                                       ≤0.02 ppm
  Cr:                                       ≤0.02 ppm
  Cu:                                       ≤0.1 ppm
  Fe:                                       ≤0.1 ppm
  K:                                       ≤0.5 ppm
  Li:                                       ≤0.1 ppm
  Mg:                                       ≤0.1 ppm
  Mn:                                       ≤0.02 ppm
  Mo:                                       ≤0.1 ppm
  Na:                                       ≤1 ppm
  Ni:                                       ≤0.02 ppm
  Pb:                                       ≤0.1 ppm
  Sr:                                       ≤0.1 ppm
  Zn:                                       ≤0.1 ppm