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Molecular motion display device

A technology of display device and molecular movement, which is applied in the field of teaching experiment equipment, can solve the problems of poisonous gas, high experiment cost, injury to students and teachers, etc., and achieve the effect of low cost and simple experiment process

Inactive Publication Date: 2014-11-19
徐晶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The experiment has the following defects. First, the preparation of nitrogen dioxide gas is cumbersome and toxic, and the cost of the experiment is relatively large and will cause physical harm to students and teachers. Second, the experiment is difficult for the teacher to operate alone, and it is also difficult for the students to experiment

Method used

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  • Molecular motion display device

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Embodiment Construction

[0011] Combine below figure 1 Specific description embodiment:

[0012] Such as figure 1 As shown in the molecular motion display device, the molecular motion display device includes a strip-shaped container 1, one end of the strip-shaped container 1 is closed, and a filter paper 2 is arranged inside the strip-shaped container 1, so A number of phenolphthalein test solution drops 3 are dripped at intervals on the filter paper 2, and a cotton ball 4 is arranged at the other end of the strip-shaped container 1, and concentrated ammonia water is added dropwise on the cotton ball 4.

[0013] Preferably, the strip-shaped container is a glass test tube.

[0014] Preferably, the phenolphthalein test droplets are equidistantly spaced.

[0015] When the molecular movement display device provided by the present invention is used, a filter paper is firstly taken, and then phenolphthalein test liquid drops are dripped on the filter paper at intervals. Then put the filter paper into th...

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Abstract

The invention belongs to the technical field of teaching experiment equipment, and particularly relates to a molecular motion display device. The molecular motion display device is characterized by comprising a strip-shaped container. One end of the strip-shaped container is closed, filter paper is arranged in the strip-shaped container, a plurality of phenolphthalein test solution drops are dropped on the filter paper at intervals, cotton is arranged at the other end of the strip-shaped container, and stronger ammonia water is dropwise added to the cotton. The molecular motion display device has the advantages of being low in cost, simple in experimental process, convenient to operate and obvious in experiment result.

Description

technical field [0001] The invention belongs to the technical field of teaching experiment equipment, and in particular relates to a molecular motion display device. Background technique [0002] In science textbooks, two glass bottles filled with nitrogen dioxide gas and air are used in the teaching experiment of molecular motion, with the mouths of the bottles facing each other and separated by a glass plate in the middle. Then remove the glass plate to make the two bottle mouths close to each other. Observe the phenomenon of gas diffusion. The experiment has the following defects. First, the preparation of nitrogen dioxide gas is cumbersome and toxic, and the cost of the experiment is relatively high and will cause physical harm to students and teachers. Second, the experiment is difficult for the teacher to operate alone, and it is also difficult for the students to experiment. Contents of the invention [0003] The purpose of the present invention is to solve the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/12
Inventor 徐晶
Owner 徐晶