CN203260250U - Simple device for hydrogen preparation by sodium and water - Google Patents
Simple device for hydrogen preparation by sodium and water Download PDFInfo
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- CN203260250U CN203260250U CN 201320271708 CN201320271708U CN203260250U CN 203260250 U CN203260250 U CN 203260250U CN 201320271708 CN201320271708 CN 201320271708 CN 201320271708 U CN201320271708 U CN 201320271708U CN 203260250 U CN203260250 U CN 203260250U
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- test tube
- water
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Abstract
The utility model discloses a simple device for hydrogen preparation by sodium and water. The simple device is formed by a gas collecting bottle 1, a funnel 2 and a test tube 3 and is characterized in that: the funnel 2 backward covers a bottle opening of the gas collecting bottle 1; and the test tube 3 is sleeved on the neck 2a of the funnel 2 to collect gas. The simple device of the hydrogen preparation by the sodium and the water is simple in structure and easy to operate, there is no need for an operator to put his/her hands into sodium hydroxide solution, so skin of the operator is free from damage, and when the hydrogen is lighted, crack sound is generated and experiment phenomenon is obvious.
Description
Technical field
The utility model relates to a kind of middle school chemical experiment improved device, especially a kind of sodium and water reaction hydrogen manufacturing easy device.
Background technology
The experiment of sodium and water reaction hydrogen making is a basic experiment in the senior middle school chemical teaching material.The instrument of using is beaker, tweezers, test tube.Experimental procedure is that the test tube with filled with water pours in the beaker that fills water, clamp the sodium of the mung bean size of the aluminium foil parcel that has stung aperture with tweezers, put into test tube mouth below, when waiting full gas of test tube collection, block the test tube mouth and from solution, take out with thumb, shift near spirit lamp downwards and light; Then drip colourless phenolphthalein test solution in beaker, solution takes on a red color.The shortcoming of this experiment is: need large capacity beaker, and the experimental implementation more complicated, inconvenient operation, the sodium metal particle comes off easily, causes the failure of an experiment, and the student is difficult to complete independently; Secondly, because the NaOH that sodium and water reaction generates is highly basic, very strong corrosivity is arranged, and behind the full gas of test tube collection, must reach in the NaOH solution, block the test tube mouth with thumb, test tube is shifted out from solution, and this moment, NaOH can produce certain corrosion to human body skin; The 3rd, the gas that drainage is collected is purer, and it is less to sound during check hydrogen, and rear row classmate is difficult to hear, can not make a profound impression to the student.
Summary of the invention
It is a kind of easy and simple to handle, easy that the purpose of this utility model is to provide, and the operator need not hand is stretched in the sodium hydroxide solution, can not injure operator's skin, lights the larger a kind of sodium and water reaction hydrogen manufacturing easy device of check hydrogen sound.
For reaching above purpose, the technical scheme that the utility model adopts is: this sodium and water reaction hydrogen manufacturing easy device is made of gas bottle, funnel, test tube, it is characterized in that funnel tips upside down on the bottleneck of gas bottle, the neck of funnel is overlapping test tube, is used for collecting gas.Experimental principle is: 2Na+2H
2O=2NaOH+H
2↑.Concrete experimentation is: the water of packing in gas bottle is to bottleneck, downcut a fritter sodium, blot the kerosene of outside with filter paper, be added to the water, the mouth at gas bottle puts inverted funnel rapidly, put small test tube on the neck of funnel, be used for collecting hydrogen, block the test tube mouth with thumb, shift near spirit lamp downwards and light, explosion is arranged, drip colourless phenolphthalein test solution in the most backward gas bottle.
The beneficial effects of the utility model are: compare with sodium and water reaction hydrogen in the teaching material, a whole set of experimental provision is simple and convenient, and is simple to operate, easy, the operator need not hand is stretched in the sodium hydroxide solution, can not injure operator's skin, lighting hydrogen has explosion, and experimental phenomena is obvious.
Description of drawings
Fig. 1 is the utility model structure cross-sectional schematic.
Embodiment
Make the utility model with reference to accompanying drawing 1.This sodium and water reaction hydrogen manufacturing easy device is made of gas bottle 1, funnel 2, test tube 3, it is characterized in that funnel 2 tips upside down on the bottleneck of gas bottle 1, and the neck 2a of funnel 2 is overlapping test tube 3, is used for collecting gas.
Claims (1)
1. sodium and water reaction hydrogen manufacturing easy device, consisted of by gas bottle (1), funnel (2), test tube (3), it is characterized in that funnel (2) tips upside down on the bottleneck of gas bottle (1), the neck (2a) of funnel (2) is overlapping test tube (3), is used for collecting gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271708 CN203260250U (en) | 2013-05-19 | 2013-05-19 | Simple device for hydrogen preparation by sodium and water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271708 CN203260250U (en) | 2013-05-19 | 2013-05-19 | Simple device for hydrogen preparation by sodium and water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260250U true CN203260250U (en) | 2013-10-30 |
Family
ID=49472796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320271708 Expired - Fee Related CN203260250U (en) | 2013-05-19 | 2013-05-19 | Simple device for hydrogen preparation by sodium and water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260250U (en) |
-
2013
- 2013-05-19 CN CN 201320271708 patent/CN203260250U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140519 |