性状：略有温和的特殊气味。能与乙醇、乙醚、丙酮、四氯化碳等多种有机溶剂混溶，微溶于水，22℃时在100ml水中溶解2.7g。易燃。低毒，半数致死量(大鼠，经口)

备注: 以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。

质量标准：

项目                                                分析纯(AR)
沸程Boiling range/℃                          137.0～139.0  
纯度Purity                                        ≥98% (GC)
比重Specific gravity (20/20°C)              0.813～0.816  
水分water                                          ≤0.2%  
酸度Acidity(以H+计)/（mmol/100g）      ≤0.1  
折光率Refractive index n20/D               1.409～1.411  
蒸发残渣Evaporation residue                 ≤0.005%  

品级Grade                                       优级纯(GR)
外观Appearance                                 白色至米黄色粉末
红外光谱鉴别Infrared spectrometry       和对照匹配
纯度Purity                                       ≥99.0% (GC)  
折光率Refractive index n20/D              1.4070 - 1.4110

品级Grade                                       ACS级 (ACS)
外观Appearance                                白色至米黄色粉末
红外光谱鉴别Infrared spectrometry      和对照匹配
纯度Purity                                       ≥99.0% (GC)  
折光率Refractive index n20/D              1.4070 - 1.4110
水分Water                                        ≤0.50 % (by Karl Fischer)
灼烧残渣Residue on Evaporation           ≤0.003 %
色度Color Test                                  ≤30 APHA
羰基复合物Carbonyl compounds            ≤0.1 %
  （As Formaldehyde）
酸和脂类Acids and Esters  Pass            <0.075 mg/g

品级Grade                                   高纯级  
Purity (GC)                                  ≥ 99.5%
Identity (IR)                                conforms
Free acid (as CH3COOH)                ≤ 0.005 %
Al (Aluminium)                            ≤ 0.00005 %
B (Boron)                                    ≤ 0.000002 %
Ba (Barium)                                 ≤ 0.00001 %
Ca (Calcium)                               ≤ 0.00005 %
Cd (Cadmium)                              ≤ 0.000005 %
Co (Cobalt)                                  ≤ 0.000002 %
Cr (Chromium)                              ≤ 0.000002 %
Cu (Copper)                                 ≤ 0.000002 %
Fe (Iron)                                     ≤ 0.00005 %
Mg (Magnesium)                           ≤ 0.00001 %
Mn (Manganese)                           ≤ 0.000002 %
Ni (Nickel)                                  ≤ 0.000002 %
Pb (Lead)                                    ≤ 0.00001 %
Sn (Tin)                                      ≤ 0.00001 %
Zn (Zinc)                                     ≤ 0.00001 %
Valerian aldehyde (GC)                    ≤ 0.1 %
Readily carbonizable substances        conforms
Evaporation residue                        ≤ 0.005 %
Water                                          ≤ 0.1 %

贮存：密封保存。

用途：有机合成，溶剂。高纯度的可用作气相色谱分析标准。

联合国编号 1105

Risk： R10- R20- R37- R66-

Safety : S46-

Hazard : Xn -