CN202976636U - Sodium and water reaction experiment device - Google Patents
Sodium and water reaction experiment device Download PDFInfo
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- CN202976636U CN202976636U CN 201220725303 CN201220725303U CN202976636U CN 202976636 U CN202976636 U CN 202976636U CN 201220725303 CN201220725303 CN 201220725303 CN 201220725303 U CN201220725303 U CN 201220725303U CN 202976636 U CN202976636 U CN 202976636U
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- sodium
- water
- bottle
- funnel
- kerosene
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Abstract
The utility model discloses a sodium and water reaction experiment device. The sodium and water reaction experiment device comprises a bottle which is provided with water and kerosene. The mouth of the bottle is provided with a bottle stopper, a funnel and a duct with a glass piston. The funnel and the duct pass through the bottle stopper. The lower end of the funnel extends into the water layer. The lower end of the duct extends above the kerosene layer. The experiment device has the advantages that the operation is easy; the experiment device can be repeatedly used, and the success rate is 100%; the operation is safe; the mineral water bottle is filled with liquid at first, and air is eliminated, thus prepared hydrogen is pure, and explosion accidents are prevented; the phenomenon is obvious; in addition that NaOH and H2 generating can be observed, the properties of the generated gases are verified; the reaction of sodium on the interface of the kerosene layer and the water layer, and the phenomenon that sodium bounces up and down in the kerosene layer can be observed; the quality is trained; and the improvement of the experiment device stimulates the innovation spirit of students and strengthens the safety consciousness of students.
Description
Technical field
The utility model relates to a kind of experimental provision, refers to especially a kind of experimental provision of sodium and water reaction.
Background technology
In senior I chemistry teaching material (Soviet Union religion version), the sodium and water reaction Examination on experimental operation is as follows: drip several phenolphthalein solutions in a small beaker that fills water, then drop into a fritter (approximately size as the mung bean grain) sodium metal, the observation experiment phenomenon.Then teaching material directly provides chemical equation 2Na+2H
2O=2NaOH+H
2↑.The generation of NaOH reddens by phenolphthalein and is intuitively presented, but whether reaction has γ-ray emission, is what but fails to present if gas is arranged; And this reaction often causes too greatly the experiment accident because of the sodium of taking in student grouping.This paper can be used as the useful of teaching material experiment and replenishes by the improvement to this experiment, intuitively presents the gas that reaction produces, and can verify that this gas has slightly solubility and combustibility, and then judge that this gas is hydrogen.And can allow observation of students to sodium kerosene layer and water layer interfacial reaction and in the kerosene layer phenomenon of bob.By the experimental phenomena that displays, the trait of thinking of cultivated preferably the realistic scientism of student and observation problem, problem analysis, dealing with problems.
In other teaching material, in order to collect and verify gas, also coordinated an other covering device, namely encase sodium metal with aluminium foil, wear several apertures with pin, then it is pure to collect posteriority with drainage on aluminium foil.Though this experiment can see bubble and collect gas, in experimentation, hand will contact NaOH solution, and it is not obvious to test pure sound, also has certain defective.
Summary of the invention
The phenomenon that the utility model provides a kind of experimental provision of sodium and water reaction to produce gas is not obvious, even can not observe γ-ray emission, and the product that generates of reaction such as can not identify well at the problem.
The utility model adopts following technical scheme:
The experimental provision of sodium and water reaction, comprise the bottle that is equipped with water and kerosene, the bottleneck of this bottle is equipped with bottle stopper, funnel and with the conduit of glass piston, this funnel and conduit all run through this bottle stopper, and this funnel lower end extends in water layer, and the lower end of this conduit extends to the top of kerosene layer.
More specifically, above-mentioned bottle is transparent bottle, and more specifically, above-mentioned bottle is mineral water bottle.
The upper end of above-mentioned conduit with glass piston is equipped with sharp nozzle canula, and this sharp nozzle canula connects this with the conduit of glass piston by rubber tube.
Above-mentioned bottle stopper is rubber stopper with double hole.
By above-mentioned description to the utility model structure as can be known, compared to the prior art, the utlity model has following advantage:
1. device is simple: select sky mineral water bottle, funnel, all be simple and easy to the sharp nozzle canula of glass piston, gather materials on the spot, energy-conserving and environment-protective.
2. easy to operate: as can to repeat success ratio 100%.
3. handling safety: because of first filled with fluid deaeration in mineral water bottle, the hydrogen that makes is pure, the accident of can not blasting.
4. phenomenon is obvious: generate NaOH and H except observing
2, the gas property that generates is verified, can also observe sodium kerosene layer and water layer interfacial reaction and in the kerosene layer phenomenon of bob, the reason that is kept at kerosene for sodium has been done excellent deciphering.
5. cultivation quality: the improvement of experimental provision has excited student's initiative spirit, and has strengthened student's awareness of safety, the trait of thinking of be conducive to cultivate the realistic scientism of student and observation problem, problem analysis, dealing with problems.
Description of drawings
Fig. 1 is the structural representation of experimental provision of the present utility model.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.
With reference to Fig. 1, the experimental provision of sodium and water reaction, comprise the mineral water bottle 1 that is equipped with water and kerosene, the bottleneck of this mineral water bottle 1 is equipped with rubber stopper with double hole 2, funnel 3 and with the conduit 4 of glass piston, this funnel 3 and this conduit 4 are assemblied in two holes of this rubber stopper with double hole 2, and this funnel 3 lower ends extend in water layer 11, and the lower end of this conduit 4 extends to the top of kerosene layer 12; Upper end with the conduit 4 of glass piston is equipped with sharp nozzle canula 5, and this sharp nozzle canula 5 connects this with the conduit 4 of glass piston by rubber tube.
Adopt the concrete experiment of experimental provision of the present utility model as described below:
(1) experimental article
1. medicine and consumption:
(1) sodium metal 13(cuts with a knife and cuts out the cube that the length of side is the 0.5cm left and right, three),
(2) kerosene (50mL left and right),
(3) water (600mL left and right),
(4) phenolphthalein solution (1 bottle);
2. instrument and quantity:
(5) empty mineral water bottle 1, large beaker (each 1),
(6) funnel 3, the sharp nozzle canula (4,5) with glass piston, rubber stopper with double hole 2 (each 1),
(7) filter paper, tweezers, pocket knife, spirit lamp, match etc.;
The experimental provision that assembling is completed as shown in Figure 1.
(2) experimental principle
1. 2Na+2H
2O=2NaOH+H
2↑, sodium character is active, gives birth to vigorous reaction with steeping in water for reconstitution and generates NaOH and hydrogen, and emit heat.
2. 2H
2+ O
2 
2H
2O, pure hydrogen, undisturbedly burning after lighting.
(3) experimental technique and phenomenon thereof
1. the impermeability of testing fixture: after installing device, close the wireway glass piston, add water in funnel 3, rest in funnel 3 until water can't flow down, illustrate that impermeability is good.
2. add kerosene: add 50mL kerosene in empty mineral water bottle 1.
3. add sodium metal 13: be the cubic sodium metal 13 of 0.5cm left and right with the tweezers gripping 3 wide height of grain length, drop in the kerosene of mineral water bottle 1.
4. dress rubber stopper: will be with rubber stopper with double hole 2 jam-pack mineral water bottle 1 bottlenecks of funnel 3 and wireway.
5. add water: open the glass piston of wireway, add water (drip in water several phenolphthalein solutions are arranged) by funnel 3 in mineral water bottle 1, until fill it up with whole mineral water bottle 1.Water one runs into sodium metal 13 vigorous reaction and the look that reddens immediately.
6. observe the slightly solubility that generates gas: close the glass piston of wireway, red solution enters in funnel 3 immediately, sometimes even can form beautiful fountain.
7. observe to generate the combustibility of gas: when red solution approaches when filling whole funnel 3, open the glass piston of wireway, light gas.This moment, gas can quietly burn.
8. observe the variation of sodium metal 13: open the glass piston of wireway, can observe sodium metal 13 first at kerosene layer and water layer intersection, the surface produces a large amount of bubbles, after rise in kerosene layer 12, drop on the interface again, then rise, the obvious process of bob occurs.
Above-mentioned is only embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.
Claims (5)
1. the experimental provision of sodium and water reaction, comprise the bottle that is equipped with water and kerosene, it is characterized in that: the bottleneck of described bottle is equipped with bottle stopper, funnel and with the conduit of glass piston, this funnel and conduit all run through this bottle stopper ground setting, and this funnel lower end extends in water layer, and the lower end of this conduit extends to the top of kerosene layer.
2. the experimental provision of sodium and water reaction as claimed in claim 1, it is characterized in that: described bottle is transparent bottle.
3. the experimental provision of sodium and water reaction as claimed in claim 2, it is characterized in that: described bottle is mineral water bottle.
4. the experimental provision of sodium and water reaction as claimed in claim 1 is characterized in that: the upper end of described conduit with glass piston is equipped with sharp nozzle canula, and this sharp nozzle canula connects this with the conduit of glass piston by rubber tube.
5. the experimental provision of sodium and water reaction as claimed in claim 1, it is characterized in that: described bottle stopper is rubber stopper with double hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725303 CN202976636U (en) | 2012-12-26 | 2012-12-26 | Sodium and water reaction experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725303 CN202976636U (en) | 2012-12-26 | 2012-12-26 | Sodium and water reaction experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976636U true CN202976636U (en) | 2013-06-05 |
Family
ID=48517681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725303 Expired - Fee Related CN202976636U (en) | 2012-12-26 | 2012-12-26 | Sodium and water reaction experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479842A (en) * | 2021-07-22 | 2021-10-08 | 杨传保 | Method for preparing hydrogen by using active metal |
-
2012
- 2012-12-26 CN CN 201220725303 patent/CN202976636U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479842A (en) * | 2021-07-22 | 2021-10-08 | 杨传保 | Method for preparing hydrogen by using active metal |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20161226 |