无色透明液体，是一类性能优良的非质子极性溶剂。有强烈醚样气味同，有吸湿性，能与水及碳氢化合物混溶，溶于烃类溶剂。易燃。半数致死量(大鼠，经口)7g/kg。
熔点：-58℃
闪点：4.5℃
沸点：84-86℃

项目Item                          化学纯        分析纯
                                   (CP)          (AR)
含量Assay,%                        99.00         99.50
密度(20℃)Density,g/mL             0.865-0.868   0.8683(20°C)
沸程Boiling range,℃               84.0-86.0     84.0-86.0
折光率Refractive index,n_D²⁰       1.3790-1.3820 1.3795(20°C)
水溶解试验Solubility in water      合格          合格
醇溶解试验Solubility in alcohol    合格          合格
蒸发残渣Evaporation residue,%      ≤ 0.005      0.002
酸碱度试验Acidity and alkalinity   合格          合格
水含量water                        ≤0.5%        ≤0.1%


品级Grade                               色谱纯  
                                      (for HPLC, 99.5%)
外观Appearance                          Colorless Liquid
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.5% (GC)  
蒸发残渣Residue on Evaporation          ≤0.0005 %
λ H2O reference
UV absorption
  λ: 220 nm A:                          ≤1.00
  λ: 250 nm A:                          ≤0.20
  λ: 300 nm A:                          ≤0.03
  λ: 350 nm A:                          ≤0.01
  λ: 400 nm A:                          ≤0.01



品级Grade                               光谱纯  
                              (spectrophotometric grade, 99.5%)
外观Appearance                          Colorless Liquid
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.5% (GC)  
蒸发残渣Residue on Evaporation          ≤0.0005 %
λ H2O reference
UV absorption
  λ: 220 nm A:                          ≤1.00
  λ: 250 nm A:                          ≤0.20
  λ: 300 nm A:                          ≤0.03
  λ: 350 nm A:                          ≤0.01
  λ: 400 nm A:                          ≤0.01