normal hexane

例句：

1. 1.This solvent is used to dissolve organic compounds in normal hexane.
   这种溶剂用于在正己烷中溶解有机化合物。
2. 2.The chemical was dissolved in normal hexane and then filtered out.
   该化学物质被溶解在正己烷中，然后过滤掉。
3. 3.The normal hexane was used to extract the essential oils from the plant.
   使用正己烷从植物中提取出精油。