CN206271297U - A kind of improvement experimental provision for preparing ferrous hydroxide - Google Patents
A kind of improvement experimental provision for preparing ferrous hydroxide Download PDFInfo
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- CN206271297U CN206271297U CN201621221428.XU CN201621221428U CN206271297U CN 206271297 U CN206271297 U CN 206271297U CN 201621221428 U CN201621221428 U CN 201621221428U CN 206271297 U CN206271297 U CN 206271297U
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- test tube
- wireway
- tool test
- copper rod
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Abstract
The utility model provides a kind of improvement experimental provision for preparing ferrous hydroxide, is primarily characterized in that：It is made up of the iron stand with iron clamp, copper rod, the copper mesh bag for being enclosed with metallic sodium, rubber stopper, the tool test tube equipped with brand-new copperas solution, the emulsion tube with spring clip, wireway, the tank equipped with water.Tool test tube equipped with brand-new copperas solution is fixed on iron stand, and the rubber stopper with copper rod stoppers tool test tube mouthful, and a copper mesh bag equipped with metallic sodium is fixed in the copper rod end of rubber stopper inner end.The branch pipe of emulsion tube connection wireway and tool test tube with spring clip, the end of wireway is stretched into the tank equipped with water.Textbook device is defective：Hardly result in the white precipitate of stabilization.Using the utility model has the advantages that：The white precipitate ferrous hydroxide of stabilization can be prepared.
Description
First, technical field
The utility model belongs to chemical field, is related to a kind of chemical experiment device, particularly for demonstrating senior chemistry class
The experiment of ferrous hydroxide is prepared in sheet.
2nd, background technology
New textbook people religion version chemistry 1（It is required）Chapter 3, first segment prepares the experiment of ferrous hydroxide, so real in teaching material
Test：A small amount of freshly prepd copperas solution is added in test tube, sodium hydroxide solution is then instilled.It can be seen that clamp-oning hydrogen-oxygen
After changing sodium solution, precipitation is immediately turned to celadon, and bronzing is ultimately become after a while.This is due to the two of ferrous hydroxide
Valency iron is easily oxidized to ferric iron, and white flock precipitate quickly becomes celadon, ultimately becomes iron hydroxide russet.Cause
This, the experiment existing defects in teaching material：Because the ferrous iron in ferrous hydroxide is easily oxidized to ferric iron in atmosphere, institute
To hardly result in the ferrous hydroxide white precipitate of stabilization with the method in teaching material.
3rd, utility model content
The utility model purpose is to provide a kind of improvement experimental provision for preparing ferrous hydroxide.Use the utility model
The ferrous hydroxide white precipitate of stabilization can be obtained.The utility model is not only applicable on classroom and does lecture experiment, is also applicable
Student does grouping experiment.
The purpose of this utility model is realized by the following method：
A kind of improvement experimental provision for preparing ferrous hydroxide, is primarily characterized in that：It is by band iron clamp（2）Iron stand
（1）, copper rod（3）, be enclosed with metallic sodium（5）Copper mesh bag（4）, rubber stopper（6）, equipped with brand-new copperas solution tool branch examination
Pipe（7）, band spring clip（8）Emulsion tube（9）, wireway（10）, the tank equipped with water（11）Composition.
] tool test tube equipped with brand-new copperas solution（7）It is fixed on iron stand（1）On.Band copper rod（3）Rubber
Plug（6）Stopper tool test tube（7）Mouthful, rubber stopper（6）The copper rod of inner end（3）End fixes one equipped with metallic sodium（5）Copper mesh
Bag（4）.Band spring clip（8）Emulsion tube（9）Connection wireway（10）And tool test tube（7）Branch pipe, wireway（10）End
Stretch into the tank equipped with water in end（11）.
Experimentation：Connection instrument, the air-tightness of check device.In tool test tube（7）In fill appropriate brand-new ferrous sulfate
Solution, uses iron clamp（2）Will be equipped with the tool test tube of brand-new copperas solution（7）It is fixed on iron stand vertically（1）On.By copper rod
（3）Through rubber stopper（6）, make copper rod（3）Can move up and down, in rubber stopper（6）The copper rod of inner end（3）A parcel is fixed in end
There is a metallic sodium（5）Copper mesh bag（4）.Then with band copper rod（3）Rubber stopper（6）Stopper tool test tube（7）Mouthful.Use band bullet
Spring is pressed from both sides（8）Emulsion tube（9）Connection wireway（10）And tool test tube（7）Branch pipe, by wireway（10）End stretch into dress
There is the tank of water（11）In.During experiment, copper rod is moved down（3）, make to be enclosed with a metallic sodium（5）Copper mesh bag（4）Submergence
In brand-new copperas solution, at this moment it can be seen that metallic sodium（5）Produced with the water reaction in brand-new copperas solution big
Amount bubble, when observation screw clamp（11）In wireway（10）Spring clip when end bubble-free is emerged（8）Clamp emulsion tube
（9）, at this moment it is observed that forming the white flock precipitate of a plurality of stabilization in the solution, long period nondiscolouring, this be due to
NaOH is generated while metallic sodium is with water reaction generation hydrogen, NaOH reacts generation with brand-new copperas solution
The ferrous hydroxide precipitation of white, the ferrous hydroxide place of settling of generation is effectively protected hydrogen among the protection of hydrogen
Ferrous oxide is precipitated.When opening rubber stopper（6）, vibrate tool test tube（7）, will see that white precipitate becomes celadon quickly,
And reddish-brown precipitation is ultimately formed, this is due to tool test tube（7）In hydrogen effusion, the ferrous hydroxide precipitation of white with it is empty
Oxygen contact in gas, ferrous iron becomes ferric iron, and white flock precipitate quickly becomes celadon, ultimately becomes russet
Iron hydroxide.
The beneficial effects of the utility model are：The ferrous hydroxide white precipitate of stabilization can be prepared using the utility model；
The utility model is applicable not only to do lecture experiment on classroom, applies also for student and does grouping experiment.
4th, illustrate
Fig. 1 is structure chart of the present utility model.
Mark in figure is represented respectively：
（1）Iron stand（2）Iron clamp（3）Copper rod（4）Copper mesh bag（5）Metallic sodium（6）Rubber stopper（7）Tool test tube
（8）Spring clip（9）Emulsion tube（10）Wireway（11）Tank equipped with water
5th, specific embodiment
With reference to specific embodiment, the utility model is described in further detail：
A kind of improvement experimental provision for preparing ferrous hydroxide, is primarily characterized in that：It is by band iron clamp（2）Iron stand
（1）, copper rod（3）, be enclosed with metallic sodium（5）Copper mesh bag（4）, rubber stopper（6）, equipped with brand-new copperas solution tool branch examination
Pipe（7）, band spring clip（8）Emulsion tube（9）, wireway（10）, the tank equipped with water（11）Composition.
] tool test tube equipped with brand-new copperas solution（7）It is fixed on iron stand（1）On.Band copper rod（3）Rubber
Plug（6）Stopper tool test tube（7）Mouthful, rubber stopper（6）The copper rod of inner end（3）End fixes one equipped with metallic sodium（5）Copper mesh
Bag（4）.Band spring clip（8）Emulsion tube（9）Connection wireway（10）And tool test tube（7）Branch pipe, wireway（10）End
Stretch into the tank equipped with water in end（11）.
Application method of the present utility model：Connection instrument, the air-tightness of check device.In tool test tube（7）Middle dress is appropriate
Brand-new copperas solution, uses iron clamp（2）Will be equipped with the tool test tube of brand-new copperas solution（7）It is fixed on iron stand vertically
（1）On.By copper rod（3）Through rubber stopper（6）, make copper rod（3）Can move up and down, in rubber stopper（6）The copper rod of inner end（3）End
Fix one and be enclosed with a metallic sodium（5）Copper mesh bag（4）.Then with band copper rod（3）Rubber stopper（6）Stopper tool test tube
（7）Mouthful.Use band spring clip（8）Emulsion tube（9）Connection wireway（10）And tool test tube（7）Branch pipe, by wireway（10）
End stretch into the tank equipped with water（11）In.During experiment, copper rod is moved down（3）, make to be enclosed with a metallic sodium（5）Copper
Mesh bag（4）It is immersed in brand-new copperas solution, at this moment it can be seen that metallic sodium（5）With the water in brand-new copperas solution
Reaction produces a large amount of bubbles, when observation screw clamp（11）In wireway（10）Spring clip when end bubble-free is emerged（8）Folder
Tight emulsion tube（9）, at this moment it is observed that forming the white flock precipitate of a plurality of stabilization in the solution, long period nondiscolouring,
This generates NaOH, NaOH and brand-new copperas solution while being due to metallic sodium and water reaction generation hydrogen
Reaction generate white ferrous hydroxide precipitation, the ferrous hydroxide place of settling of generation among the protection of hydrogen, effectively
Ferrous hydroxide is protected to precipitate.When opening rubber stopper（6）, vibrate tool test tube（7）, will see that white precipitate becomes quickly
Celadon, and reddish-brown precipitation is ultimately formed, this is due to tool test tube（7）In hydrogen effusion, white ferrous hydroxide
Precipitation is contacted with the oxygen in air, and ferrous iron becomes ferric iron, and white flock precipitate quickly becomes celadon, ultimately becomes
Iron hydroxide russet.The utility model has the advantages that：The ferrous hydroxide white of stabilization can be prepared using the utility model
Precipitation；The utility model is applicable not only to do lecture experiment on classroom and applies also for student and do grouping experiment.
Claims (1)
1. a kind of improvement experimental provision for preparing ferrous hydroxide, is primarily characterized in that：It is by band iron clamp（2）Iron stand
（1）, copper rod（3）, be enclosed with metallic sodium（5）Copper mesh bag（4）, rubber stopper（6）, equipped with brand-new copperas solution tool branch examination
Pipe（7）, band spring clip（8）Emulsion tube（9）, wireway（10）, the tank equipped with water（11）Composition, equipped with brand-new ferrous sulfate
The tool test tube of solution（7）It is fixed on iron stand（1）On, band copper rod（3）Rubber stopper（6）Stopper tool test tube（7）Mouthful, rubber
Plug（6）The copper rod of inner end（3）End fixes one equipped with metallic sodium（5）Copper mesh bag（4）, band spring clip（8）Emulsion tube（9）
Connection wireway（10）And tool test tube（7）Branch pipe, wireway（10）End stretch into the tank equipped with water（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621221428.XU CN206271297U (en) | 2016-11-14 | 2016-11-14 | A kind of improvement experimental provision for preparing ferrous hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621221428.XU CN206271297U (en) | 2016-11-14 | 2016-11-14 | A kind of improvement experimental provision for preparing ferrous hydroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206271297U true CN206271297U (en) | 2017-06-20 |
Family
ID=59039729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621221428.XU Expired - Fee Related CN206271297U (en) | 2016-11-14 | 2016-11-14 | A kind of improvement experimental provision for preparing ferrous hydroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206271297U (en) |
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2016
- 2016-11-14 CN CN201621221428.XU patent/CN206271297U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170620 Termination date: 20171114 |