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58问答库 > 大学有机化学实验中冷凝管的作用和分类

大学有机化学实验中冷凝管的作用和分类

2025-04-07 15:01:46

推荐回答（2个）

回答（1）：

球冷作为反应回流使用，竖直插在烧瓶上
刺冷又称精馏柱，作为分离沸点相差不大的液体精馏时使用
直行冷凝管作为普通蒸馏后的冷凝管，水平倾斜放置使用

回答（2）：

1。球冷用于回流。刺冷用于分馏。
2。蒸馏用直冷或空气冷凝管。馏分高于140度时用空气冷凝管。

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