CN200987971Y - 简易的白磷燃烧实验装置 - Google Patents
简易的白磷燃烧实验装置 Download PDFInfo
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- CN200987971Y CN200987971Y CN 200620168497 CN200620168497U CN200987971Y CN 200987971 Y CN200987971 Y CN 200987971Y CN 200620168497 CN200620168497 CN 200620168497 CN 200620168497 U CN200620168497 U CN 200620168497U CN 200987971 Y CN200987971 Y CN 200987971Y
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Abstract
一种简易的白磷燃烧实验装置，包括有一个锥形实验瓶，其特点是所述的锥形实验瓶内的底部设有一个凹形的铜片，铜片的凹形槽中放有白磷块，所述的锥形实验瓶的瓶口处设有带孔的瓶塞，导气管的一端通过该孔进入锥形实验瓶内，导气管的另一端设有气球，气球与导气管的连接处设有紧固加强筋。本实用新型具有结构简单、实验效果明显直观和可操作性强的特点，既便于教师快捷地完成教学任务，又提高了学生学习的兴趣和动手能力，对培养学生分析问题和解决问题的能力大有帮助。
Description
技术领域
本实用新型涉及一种教学用具，特别是涉及一种用于验证质量守恒定律的简易的白磷燃烧实验装置，是对现有中学化学教学用具品种的补充，属于文教用品范畴。
背景技术
目前，中学所用的教学用具很多，但都功能单一，只是针对各自需要展示的内容而设计的。特别是现有的化学学科的实验性很强，但可以供学生动手实验的教学用具却很少，例如，初中化学介绍的验证质量守恒定律的内容，现有的教学用具给出的实验误差较大。因此，不利于调动学生主动参与的积极性，更无助于培养学生分析问题和解决问题的能力，不仅给教学带来一定困难，甚至影响到学生的学习兴趣。
实用新型内容
本实用新型的目的在于克服现有技术存在的上述不足，通过研究改进，给出一种简易的白磷燃烧实验装置，这种新型的实验装置具有结构简单、实验效果明显直观和可操作性强的特点，既便于教师快捷地完成教学任务，又提高了学生学习的兴趣和动手能力，对培养学生分析问题和解决问题的能力大有帮助。
本实用新型给出的技术方案是：这种简易的白磷燃烧实验装置，包括有一个锥形实验瓶，其特点是所述的锥形实验瓶内的底部设有一个凹形的铜片，铜片的凹形槽中放有白磷块，所述的锥形实验瓶的瓶口处设有带孔的瓶塞，导气管的一端通过该孔进入锥形实验瓶内，导气管的另一端设有气球，气球与导气管的连接处设有紧固加强筋。
与现行技术相比，本实用新型的有益效果是：
1.装置简单，操作容易，成功率极高，由于瓶内气体没有流失，保远实验结果的准确性，弥补了课本的不足；
2.瓶塞上插有带气球的导气管，可避免白磷燃烧时放出的热量，使气体膨胀冲开瓶塞导致实验失败；
3.白磷燃烧前后均在密闭装置中进行，防止燃烧产物对环境的污染。
附图说明
附图为本实用新型给出的实施例的结构示意图。
具体实施方式
如图所示，这种简易的白磷燃烧实验装置，包括有一个锥形实验瓶1，所述的锥形实验瓶1内的底部设有一个凹形的铜片2，铜片2的凹形槽中放有白磷块3，所述的锥形实验瓶1的瓶口处设有带孔的瓶塞4，导气管5的一端通过该孔进入锥形实验瓶1内，导气管5的另一端设有气球6，气球6与导气管5的连接处设有紧固加强筋7。
演示时，先将本实验装置进行称量，再将本实验装置放在铁架台上，垫上石棉网，用酒精灯加热锥形实验瓶1底部，使锥形实验瓶1内铜片2的凹形槽中的白磷块3燃烧掉，停止加热并等待锥形实验瓶1冷却，最后将冷却后的锥形实验瓶1再次进行称量，前后两次称量结果一致，从而证明了质量守恒定律的正确性。
Claims (1)
1.一种简易的白磷燃烧实验装置，包括有一个锥形实验瓶，其特征在于所述的锥形实验瓶内的底部设有一个凹形的铜片，铜片的凹形槽中放有白磷块，所述的锥形实验瓶的瓶口处设有带孔的瓶塞，导气管的一端通过该孔进入锥形实验瓶内，导气管的另一端设有气球，气球与导气管的连接处设有紧固加强筋。
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200620168497 CN200987971Y (zh) | 2006-12-22 | 2006-12-22 | 简易的白磷燃烧实验装置 |
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| CN 200620168497 CN200987971Y (zh) | 2006-12-22 | 2006-12-22 | 简易的白磷燃烧实验装置 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379271A (zh) * | 2019-08-16 | 2019-10-25 | 董纪英 | 探究燃烧条件实验的仪器和操作方法 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379271A (zh) * | 2019-08-16 | 2019-10-25 | 董纪英 | 探究燃烧条件实验的仪器和操作方法 |
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