| 摘要 |
<p>Novel 1,3-Butylene glycol having specific chromatograms upon gas chromatographic analysis is obtained by mixing crude 1,3-butylene glycol with water and an organic solvent, separating the water-phase containing 1,3-butylene glycol and subjecting distillation of the water-phase to distillation. The gas chromatogram of the 1,3-butylene glycol has the following three properties. The sum of the areas of the peaks appearing in a specific range of relative retention time is 0.025 % or less of the area of the peak of 1,3-butylene glycol. (2) The sum of areas of the peaks attributable to compounds having an OH group and an ether bond, and having a molecular weight of 188 is 0.025 % or less of the area of the peak of 1,3-butylene glycol. (3) The sum of the areas of the peaks attributable to 2-butisy-6-methyl-4-tetrahydropyranols [sic] is 0.025 % or less of the area of the peak of 1,3-butylene glycol.</p> |
