CN202383911U - Demonstrator for reaction of dilute sulphuric acid and barium hydroxide - Google Patents
Demonstrator for reaction of dilute sulphuric acid and barium hydroxide Download PDFInfo
- Publication number
- CN202383911U CN202383911U CN2011205039245U CN201120503924U CN202383911U CN 202383911 U CN202383911 U CN 202383911U CN 2011205039245 U CN2011205039245 U CN 2011205039245U CN 201120503924 U CN201120503924 U CN 201120503924U CN 202383911 U CN202383911 U CN 202383911U
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- solution tank
- micromachine
- demonstrator
- side plate
- solution
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Abstract
The utility model discloses a demonstrator for the reaction of dilute sulphuric acid and barium hydroxide. The demonstrator is characterized in that: a side plate (1) is fixed on a bottom plate (11); a direct current power input jack (2), a main power switch (3), a miniature motor switch (4) and an ammeter (10) are arranged on the side plate (1); a solution tank (6) is cuboidal; two carbon rods (5) which are the same are fixed on a cover of the solution tank (6); an electric stirring rod (7) driven by a miniature motor (8) is arranged on the middle part of the solution tank (6); the miniature motor (8) is embedded into the middle part of the cover of the solution tank (6); and a round hole (9) is formed in the cover of the solution tank (6). The demonstrator has the advantages that: the diffusion of ions is accelerated, so that an experimental phenomenon is accurate and remarkable, and an experimental result is perfect; and the electrical conductivity of a solution is quickly and accurately measured; the magnitude of ion concentration is judged, and the reaction process of electrolyte in an aqueous solution is clearly understood.
Description
Technical field
The utility model relates to the chemistry teaching teaching aid, relates in particular to a kind of dilute sulfuric acid and baryta hydrate reaction essence demonstration device.
Background technology
At present existingly known react the essence demonstration device about dilute sulfuric acid and baryta hydrate and continue to use traditional demonstrating experiment device, form by student's power supply, two identical carbon-points, lead, galvanometer, beaker, glue head dropper and phenolphthalein, sulfuric acid and baryta hydrates.During each experiment, electrode is difficult for fixing in beaker, inconveniently stir with glass bar, thus need the time waiting observe phenomena after dripping sulfuric acid, and often to still have red the existence in the beaker behind the student experimenting sometimes be that experimental result is not ideal.
Summary of the invention
To the deficiency of above-mentioned prior art, it is a kind of simple in structure, easy to use that the utility model provides, and experiment is accurate, dilute sulfuric acid that the result is perfect and baryta hydrate reaction essence demonstration device.
The technical scheme of the utility model is: dilute sulfuric acid and baryta hydrate reaction essence demonstration device; Comprise side plate 1, direct supply input jack 2, total power switch 3, micromachine switch 4, carbon-point 5, solution tank 6, electronic stirring rod 7, micromachine 8, circular hole 9, galvanometer 10, base plate 11; It is characterized in that: side plate 1 is fixed on the base plate 11; On side plate 1, be provided with direct supply input jack 2, total power switch 3, micromachine switch 4, galvanometer 10; Said solution tank 6 is a rectangular parallelepiped, covers fixing two identical carbon-points 5 at solution tank 6, in the middle of solution tank 6, is provided with the electronic stirring rod 7 that drive through micromachine 8; Said micromachine 8 is embedded in the middle of solution tank 6 lids, covers at solution tank 6 and is provided with circular hole 9.
The beneficial effect of the utility model is: the utility model dilute sulfuric acid and the diffusion of baryta hydrate reaction essence demonstration device speeding-up ion, and make experimental phenomena more accurate obviously, experimental result is accomplished more perfect.The conductive capability of rapid and accurate determination solution is judged the ion concentration size, the clear course of reaction of electrolyte in the WS.
Description of drawings
Fig. 1 is the structural representation of the utility model dilute sulfuric acid and baryta hydrate reaction essence demonstration device
The accompanying drawing sign: 1 is that side plate, 2 is that direct supply input jack, 3 is that total power switch, 4 is that micromachine switch, 5 is that carbon-point, 6 is that solution tank, 7 is that electronic stirring rod, 8 is that micromachine, 9 is that circular hole, 10 is that galvanometer, 11 is a base plate
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
As shown in Figure 1; The technical scheme of the utility model is: dilute sulfuric acid and baryta hydrate reaction essence demonstration device; Comprise side plate 1, direct supply input jack 2, total power switch 3, micromachine switch 4, carbon-point 5, solution tank 6, electronic stirring rod 7, micromachine 8, circular hole 9, galvanometer 10, base plate 11; It is characterized in that: side plate 1 is fixed on the base plate 11, on side plate 1, is provided with direct supply input jack 2, total power switch 3, micromachine switch 4, galvanometer 10, and said solution tank 6 is a rectangular parallelepiped; Cover fixing two identical carbon-points 5 at solution tank 6; In the middle of solution tank 6, be provided with the electronic stirring rod 7 that drives through micromachine 8, said micromachine 8 is embedded in the middle of solution tank 6 lids, covers at solution tank 6 and is provided with circular hole 9.
Method of application: in solution tank, add baryta hydrate and several phenolphthalein; Open total power switch and observe the variation of galvanometer pointer; After in baryta hydrate, dripping a sulfuric acid solution with glue head dropper through circular hole then; Close the micromachine switch after opening the micromachine switch several seconds, observe phenomenon in variation of galvanometer pointer and the solution.All to open the micromachine switch several seconds after so analogizing sulfuric acid of every dropping, close and observe phenomenon in galvanometer pointer phenomenon and the solution behind the micromachine switch.No change in solution.Sum up viewed experimental phenomena and can draw baryta hydrate and sulfuric acid reaction essence.
More than be that the embodiment that the utility model is provided has carried out detailed introduction; Present embodiment just is used to help to understand the method for designing and the core concept of the utility model; Simultaneously; To those skilled in the art, essential identical according to the design of the thought of the utility model is all within the utility model protection domain.In sum, this description can not be interpreted as the restriction to the utility model.
Claims (1)
1. dilute sulfuric acid and baryta hydrate react the essence demonstration device; Comprise side plate (1), direct supply input jack (2), total power switch (3), micromachine switch (4), carbon-point (5), solution tank (6), electronic stirring rod (7), micromachine (8), circular hole (9), galvanometer (10), base plate (11); It is characterized in that: side plate (1) is fixed on the base plate (11); On side plate (1), be provided with direct supply input jack (2), total power switch (3), micromachine switch (4), galvanometer (10); Said solution tank (6) is a rectangular parallelepiped, covers fixing two identical carbon-points (5) at solution tank (6), in the middle of solution tank (6), is provided with the electronic stirring rod (7) that drives through micromachine (8); Said micromachine (8) is embedded in the middle of solution tank (6) lid, covers at solution tank (6) and is provided with circular hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205039245U CN202383911U (en) | 2011-12-07 | 2011-12-07 | Demonstrator for reaction of dilute sulphuric acid and barium hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205039245U CN202383911U (en) | 2011-12-07 | 2011-12-07 | Demonstrator for reaction of dilute sulphuric acid and barium hydroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383911U true CN202383911U (en) | 2012-08-15 |
Family
ID=46632398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205039245U Expired - Fee Related CN202383911U (en) | 2011-12-07 | 2011-12-07 | Demonstrator for reaction of dilute sulphuric acid and barium hydroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297514A (en) * | 2016-09-30 | 2017-01-04 | 燕山大学 | A kind of chemical bond rupture restructuring apparatus for demonstrating for chemical reaction |
-
2011
- 2011-12-07 CN CN2011205039245U patent/CN202383911U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297514A (en) * | 2016-09-30 | 2017-01-04 | 燕山大学 | A kind of chemical bond rupture restructuring apparatus for demonstrating for chemical reaction |
| CN106297514B (en) * | 2016-09-30 | 2018-01-23 | 燕山大学 | A kind of chemical bond rupture restructuring apparatus for demonstrating for being used to chemically react |
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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: 20120815 Termination date: 20121207 |