CN203931308U - Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction - Google Patents
Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction Download PDFInfo
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- CN203931308U CN203931308U CN201420370337.7U CN201420370337U CN203931308U CN 203931308 U CN203931308 U CN 203931308U CN 201420370337 U CN201420370337 U CN 201420370337U CN 203931308 U CN203931308 U CN 203931308U
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- conical flask
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Abstract
The utility model belongs to teaching aid technical field, be specifically related to sodium peroxide with the apparatus for demonstrating of carbon dioxide reaction, mainly by draft tube (1), exsiccator (2), the first balloon flask (3), the first conical flask (4), the second balloon flask (5), the second conical flask (6), the first tongs (7), the second tongs (8), the 3rd tongs (9) and glass tube (10) and some conduits (11) form, the beneficial effects of the utility model are: material source is in life, cost is lower, make easily, simple, teacher, student gathers materials on the spot, the chemical teaching aid aided education of doing it yourself to make can reach directly perceived equally, image, vividly, interesting teaching efficiency, can attract student, also alleviated the difficulty of teacher in teaching, improved the efficiency of teaching of every class.
Description
Technical field
The utility model belongs to teaching aid technical field, is specifically related to sodium peroxide with the apparatus for demonstrating of carbon dioxide reaction.
Background technology
Chemical experiment is the important method that student understands, studies the natural law, it is the basis of whole chemistry teaching, it is the main path of cultivating student's hands-on and thinking ability, also be the effective means that help student understands chemical key concept, ultimate principle, the forward position of quality-oriented education and innovative education and the basis of basic educational reform, precondition and guarantee especially.
Left experimental teaching, the chemistry teaching reform of substance, essence of being just far from being, let alone implement in full quality-oriented education and advance the reform of fresh course.Therefore, experiment is the important component part of chemistry teaching, is the important step that improves quality of chemistry teaching, and in chemistry teaching, tool is of great significance.Experimental teaching is discharged the lower junior high school, rural area of rate from and is analyzed, inquires into experimental teaching present situation, and positive facilitation is got in the raising that will discharge rate to our chemical experiment teaching.
Because physical and chemical experiment and current techique practice, in conjunction with carrying out, can creativeness be carried out current techique teaching, can promote again the experimental teaching of physics and chemistry fresh course; Designing Self-made Realia can cultivate student's innovation ability, improve its comprehensive attainment, homemade various teaching aid can supplement the deficiency of existing instrument again, so teaching aid that current techique practice and chemistry, chemical experiment innovation realization are merged, it has embodied design concept, Green Chemistry theory and the chemical knowledge principle of current techique, has really reached material and has been easy to get, makes simple, environmental protection, is easy to the standard promoted.This teaching aid is suitable for student to be made personally, to cultivate its innovation and integrated practice ability.
One section of knowledge of the 32nd relevant sodium peroxide of full-time common senior middle school textbook (test revised edition is required) first chapter 2 of chemistry: " sodium peroxide reacts with carbon dioxide, generates sodium carbonate and oxygen: 2Na
2o
2+ 2CO
2=2Na
2cO
3+ O
2, therefore, it can be used in breathing apparatus and submarine in as the source of oxygen.”
Student is very interested in this, and especially, after having observed the lecture experiment of water with sodium peroxide reaction, they have not given full expression to the views, and all thinks to witness that it is how to react generation sodium carbonate and oxygen that carbon dioxide is followed sodium peroxide solid again.For this reason, after the exploration and practice through repeatedly, I have designed following experiment, have obtained desirable effect.
Summary of the invention
The purpose of this utility model will provide a kind of phenomenon obvious exactly, vivid, consuming time few, can not only check out oxygen, and can check out another product sodium carbonate, and can see fountain phenomenon, and contribute to student oneself to make and analyze judgement product, greatly excite student's learning enthusiasm and the sodium peroxide of exploring spirit with the apparatus for demonstrating of carbon dioxide reaction.
The utility model is achieved through the following technical solutions:
Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction, mainly by draft tube 1, exsiccator 2, the first balloon flask 3, the first conical flask 4, the second balloon flask 5, the second conical flask 6, the first tongs 7, the second tongs 8, the 3rd tongs 9 and glass tube 10 and some conduits 11, formed, it is characterized in that: described draft tube 1, exsiccator 2 and the first balloon flask 3 are connected by conduit 11 successively, the conduit 11 between described exsiccator 2 and the first balloon flask 3 is provided with branch road and is connected with the first conical flask 4; The first described balloon flask 3 is connected with the second balloon flask 5 with the first conical flask 4 by conduit 11 respectively; The second described balloon flask 5 is connected with the second conical flask 6 by glass tube 10; On the conduit 11 of described exsiccator 2 and the first balloon flask 3, the first balloon flask and the first conical flask 4 and branch road, be respectively equipped with the first tongs 7, the second tongs 8 and the 3rd tongs 9.
Compared with prior art, the beneficial effects of the utility model are:
The draft tube 1 that the utility model provides, exsiccator 2, the first balloon flask 3, the first conical flask 4, the second balloon flask 5, the second conical flask 6, the first tongs 7, the second tongs 8, the 3rd tongs 9 and glass tube 10 and some conduits 11, on pinch conveniently the article assembled configuration complexity of coming at one's side teaching aid, compare with experimental facilities in the past, reached material and be easy to get, make simple.And in daily experiment, this teaching aid can use continuously, simple in structure, can use on a large scale popularization, and the utility model is when test with it, can strengthen interest, can produce fascinating effect, thisly found situation, bring out problem, extend the method for expanding, introduce new class and can reduce the knowledge difficulty on teaching material, strengthen the vivid presentation process of teaching efficiency of this class, make whole teaching process effect remarkable, greatly promoted the aspiration to knowledge of student's Scientific exploration.
The beneficial effects of the utility model are: material source is in life, cost is lower, it is easy, simple to make, teacher, student gather materials on the spot, the chemical teaching aid aided education of doing it yourself to make can reach teaching efficiency directly perceived, vivid, lively, interesting equally, can attract student, also alleviate the difficulty of teacher in teaching, improved the efficiency of teaching of every class.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
In figure: draft tube 1, exsiccator 2, the first balloon flask 3, the first conical flask 4, the second balloon flask 5, the second conical flask 6, the first tongs 7, the second tongs 8, the 3rd tongs 9, glass tube 10, conduit 11.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment 1
Sodium peroxide, with the apparatus for demonstrating of carbon dioxide reaction, comprises draft tube 1, exsiccator 2, the first balloon flask 3, the first conical flask 4, the second balloon flask 5, the second conical flask 6, the first tongs 7, the second tongs 8, the 3rd tongs 9, glass tube 10 and conduit 11.
As shown in Figure 1, wherein draft tube 1, exsiccator 2 and the first balloon flask 3 are connected by conduit 11 successively, and the conduit 11 between exsiccator 2 and the first balloon flask 3 is provided with branch road and is connected with the first conical flask 4; The first balloon flask 3 is connected with the second balloon flask 5 with the first conical flask 4 by conduit 11 respectively; The second balloon flask 5 is connected with the second conical flask 6 by glass tube 10; On the conduit 11 of exsiccator 2 and the first balloon flask 3, the first balloon flask and the first conical flask 4 and branch road, be respectively equipped with the first tongs 7, the second tongs 8 and the 3rd tongs 9.
The utility model is when concrete use, and specific experiment step is as follows:
1) check the impermeability of package unit.
2) close the second tongs 8 and the 3rd tongs 9, give in wireway 1 and pass into carbon dioxide, gas enters the first balloon flask 3 and reacts with the sodium peroxide being placed in the first balloon flask 3 after being dried by exsiccator 2, after entering into the second balloon flask 5 by conduit 11, the gas producing again by glass tube 10, enters into the second conical flask 6, the carbon dioxide being mingled in oxygen absorbs by the sodium hydroxide solution in the second conical flask 6, and the batten with Mars is verified near the second conical flask 6.
3) close the first tongs 7, open the second tongs 8 and the 3rd tongs 9, now the watery hydrochloric acid in the first conical flask 4 enters into the first balloon flask 3 by conduit 11, reacted gas enters into the second balloon flask 5 by conduit 11, close after the first tongs 7, the second tongs 8 and the 3rd tongs 9, because the carbon dioxide in the first balloon flask 3 reacts with sodium hydroxide solution, at the interior generation effect of fountain of the first balloon flask 3.
Claims (1)
1. sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction, mainly by draft tube (1), exsiccator (2), the first balloon flask (3), the first conical flask (4), the second balloon flask (5), the second conical flask (6), the first tongs (7), the second tongs (8), the 3rd tongs (9) and glass tube (10) and some conduits (11) form, it is characterized in that: described draft tube (1), exsiccator (2) is connected by conduit (11) successively with the first balloon flask (3), conduit (11) between described exsiccator (2) and the first balloon flask (3) is provided with branch road and is connected with the first conical flask (4), described the first balloon flask (3) is connected with the second balloon flask (5) with the first conical flask (4) by conduit (11) respectively, described the second balloon flask (5) is connected with the second conical flask (6) by glass tube (10), on the conduit (11) of described exsiccator (2) and the first balloon flask (3), the first balloon flask and the first conical flask (4) and branch road, be respectively equipped with the first tongs (7), the second tongs (8) and the 3rd tongs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370337.7U CN203931308U (en) | 2014-07-04 | 2014-07-04 | Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370337.7U CN203931308U (en) | 2014-07-04 | 2014-07-04 | Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931308U true CN203931308U (en) | 2014-11-05 |
Family
ID=51827083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420370337.7U Expired - Fee Related CN203931308U (en) | 2014-07-04 | 2014-07-04 | Sodium peroxide is with the apparatus for demonstrating of carbon dioxide reaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931308U (en) |
-
2014
- 2014-07-04 CN CN201420370337.7U patent/CN203931308U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150704 |
|
| EXPY | Termination of patent right or utility model |