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乙酸甲酯(45999-250ML-F)色谱级

  • 进口
    grade for HPLC
    vapor density 2.55 (vs air)
    vapor pressure 165 mmHg ( 20 °C)
    assay ≥99.8% (GC)
      ≥99.8%
    autoignition temp. 936 °F
    shelf life (limited shelf life, expiry date on the label)
    expl. lim. 16 %
    total impurities ≤0.05% water
    evapn. residue ≤0.001%
    refractive index n20/D 1.361(lit.)
      n20/D 1.362
    bp 57-58 °C(lit.)
    mp −98 °C(lit.)
    density 0.934 g/mL at 25 °C
    solvent strength ε (Al2O3) 0.60
    λ 1 cm path, H2O reference
    UV absorption λ: 255 nm Amax: 1.0
      λ: 275 nm Amax: 0.1
      λ: 300 nm Amax: 0.01