供应 丙三醇

Cas号 56-81-5
Beilstein  635685
分子式 C3H8O3； HOCH2CH(OH)CH2OH
分子量 92.09
别名 1,2,3-丙三醇，甘油
报价：6800
  
质量标准

纯度Purity                                             ≥99.5%
折光率Refractive index n20/D                           ≥1.4731
水分water                                              ≤0.3%
酸碱度Fatty acids &esters (ml0.1N NaOH/25g)            ≤0.2
色泽colour Shade                                       ≤5 APHA
相对密度Specific gr***ity (20/20°C)                    ≥1.2623
酯esters (ml 0.1 N HCI/25g)                            ≥8.0
糖Sugars2                                              Negative
卤化物Halogenated cpd(as CI)2 　                       ≤5 ppm
***He***y metals(as Pb)                              ≤1ppm
灰分Sulphates ppm