CN205038886U - Prepare device of oxygen for experiments - Google Patents
Prepare device of oxygen for experiments Download PDFInfo
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- CN205038886U CN205038886U CN201520746849.3U CN201520746849U CN205038886U CN 205038886 U CN205038886 U CN 205038886U CN 201520746849 U CN201520746849 U CN 201520746849U CN 205038886 U CN205038886 U CN 205038886U
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- rubber stopper
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Abstract
The utility model discloses a prepare device of oxygen for experiments, comprises an iron support, accompany the erlenmeyer flask on the iron clamp of iron stand platform, erlenmeyer flask bottleneck department is equipped with first rubber stopper, and is equipped with two trompils in the first rubber stopper, it is equipped with spherical separating funnel to insert in trompil of first rubber stopper, inserts in another trompil of first rubber stopper and establish the glass air duct, and the lower extreme of glass air duct keeps away from the bottom of erlenmeyer flask, the bottleneck department of narrow -mouthed bottle is equipped with the glass bottle plug, and is equipped with three trompil in the glass bottle plug, the lower extreme of glass air duct stretches into the narrow -mouthed bottle bottom through a trompil, two trompils in addition of glass bottle plug are all inserted and are equipped with the glass air duct, the one end of one of them glass air duct is connected with the nitrogen cylinder, and another glass air duct passes through another glass air duct of rubber sleeve connection. The utility model discloses it is rational in infrastructure, convenient operation, control is effective, can open up the scope of one's knowledge of student.
Description
Technical field
The utility model relates to chemical experiment device technical field, is specially a kind of device of testing with oxygen producing.
Background technology
Along with the develop rapidly of educational undertaking, chemical experiment more and more causes everybody attention, in high school chemistry teaching, the method of product in laboratory oxygen comprises three kinds: heating potash chlorate, heating potassium permanganate Sum decomposition hydrogen peroxide, and the chemical equation of oxygen producing is respectively: (1) 2KMnO4=K2MnO4+MnO2+O2 ↑; (2) 2KClO3=2KCl+3O2 ↑ (MnO2 catalysis, heating); (3) 2H2O2=2H2O+O2 ↑ (MnO2 catalysis), wherein in existing middle school textbook, oxygen producing becomes oxygen by decomposing hydrogen dioxide solution, again by drainage or upwards air-discharging method collect oxygen, but existing experimental provision is too simple, to such an extent as to student can not expand and comes, study knowledge point that can only be simple, and can not confirmatory experiment whether correct, the oxygen purity also having existing device to collect is too low, the utility model, for the deficiencies in the prior art, makes improvement.
Utility model content
The purpose of this utility model is to provide a kind of device of testing with oxygen producing, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of device of testing with oxygen producing, comprise iron stand, the iron clamp of described iron stand accompanies conical flask, described conical flask bottle mouth position is provided with the first rubber stopper, and is provided with two perforates in the first rubber stopper, is inserted with bulb shape separatory funnel in the perforate of described first rubber stopper, plug glass wireway in another perforate of described first rubber stopper, and the lower end of glass wireway is away from the bottom of conical flask.
Described glass wireway is connected with another glass wireway by rubber sleeve, the below of described glass wireway is provided with narrow-mouthed bottle, the bottle mouth position of described narrow-mouthed bottle is provided with glass bottle stopper, and in glass bottle stopper, be provided with three perforates, the lower end of described glass wireway extend into bottom narrow-mouthed bottle by a perforate, another two perforates of described glass bottle stopper are all inserted with glass wireway, one end of one of them glass wireway described is connected with nitrogen cylinder, and another glass wireway connects another glass wireway by rubber sleeve.
The below of described glass wireway is provided with gas bottle, the bottle mouth position of described gas bottle is provided with the second rubber stopper, and in the second rubber stopper, be provided with two perforates, the lower end of described glass wireway extend into the bottom of gas bottle by a perforate, another tapping described is inserted with glass wireway, and the lower end of glass wireway is away from the bottom of gas bottle, the other end of described glass wireway is connected with one end of horminess glass tube, the other end of described horminess glass tube is connected with glass wireway, the bosom of described horminess glass tube is placed with copper particle, spirit lamp is provided with below described copper particle.
Preferably, the below of described narrow-mouthed bottle and spirit lamp is equipped with wooden unit.
Preferably, the inside of described bulb shape separatory funnel is contained with hydrogen peroxide, is contained with the concentrated sulphuric acid in described narrow-mouthed bottle.
Preferably, manganese dioxide particle is placed with at the bottom of the inner bottle of described conical flask.
Preferably, in the glass wireway between described narrow-mouthed bottle and nitrogen cylinder, valve is installed.
Compared with prior art, the beneficial effects of the utility model are: the utility model is added by concentrated sulphuric acid drying device, can play the effect of dry oxygen, the oxygen purity collected like this is higher, adding by nitrogen cylinder, the impact on experiment of oxygen in air can be eliminated, by adding of copper particle, can verify the generation of oxygen, so just more whether observation experiment is successful, the utility model controls convenient, and combination is simple.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1 iron stand, 2 hydrogen peroxide, 3 bulb shape separatory funnels, 4 rubber sleeves, 5 glass wireways, 6 horminess glass tubes, 7 bronze medal particles, 8 gas bottles, 9 second rubber stoppers, 10 nitrogen cylinders, 11 valves, 12 wooden units, 13 concentrated sulphuric acids, 14 narrow-mouthed bottles, 15 glass bottle stoppers, 16 first rubber stoppers, 17 manganese dioxide particles, 18 spirit lamps, 19 conical flasks.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model provides a kind of technical scheme: a kind of device of testing with oxygen producing, comprise iron stand 1, the iron clamp of iron stand 1 accompanies conical flask 19, conical flask 19 bottle mouth position is provided with the first rubber stopper 16, and be provided with two perforates in the first rubber stopper 16, bulb shape separatory funnel 3 is inserted with in first rubber stopper 16 1 perforate, adopt bulb shape separatory funnel 3 can facilitate in another perforate of control first rubber stopper 16 and plug glass wireway 5, and the lower end of glass wireway 5 is away from the bottom of conical flask 19.
Glass wireway 5 is connected with another glass wireway 5 by rubber sleeve 4, the below of glass wireway 5 is provided with narrow-mouthed bottle 14, the bottle mouth position of narrow-mouthed bottle 14 is provided with glass bottle stopper 15, because the concentrated sulphuric acid 13 energy oxidized rubber plug, glass bottle stopper 15 can not be oxidized by the concentrated sulphuric acid, and in glass bottle stopper 15, be provided with three perforates, the lower end of glass wireway 5 extend into bottom narrow-mouthed bottle 14 by a perforate, another two perforates of glass bottle stopper 15 are all inserted with glass wireway 5, one end of one of them glass wireway 5 is connected with nitrogen cylinder 10, by adding of nitrogen cylinder 10, the impact on experiment of oxygen in air can be eliminated, and another glass wireway 5 connects another glass wireway 5 by rubber sleeve 4.
The below of glass wireway 5 is provided with gas bottle 8, the bottle mouth position of gas bottle 8 is provided with the second rubber stopper 9, and be provided with two perforates in the second rubber stopper 9, the lower end of glass wireway 5 extend into the bottom of gas bottle 8 by a perforate, another tapping is inserted with glass wireway 5, and the lower end of glass wireway 5 is away from the bottom of gas bottle 8, the other end of glass wireway 5 is connected with one end of horminess glass tube 6, horminess glass tube 6 is high temperature resistant, the other end of horminess glass tube 6 is connected with glass wireway 5, the bosom of horminess glass tube 6 is placed with copper particle 7, by adding of copper particle, the generation of oxygen can be verified, so just more whether observation experiment is successful, spirit lamp 18 is provided with below copper particle 7.
The below of narrow-mouthed bottle 14 and spirit lamp 18 is equipped with wooden unit 12, the inside of bulb shape separatory funnel 3 is contained with hydrogen peroxide 2, the concentrated sulphuric acid 13 is contained with in narrow-mouthed bottle 14, by adding of the concentrated sulphuric acid 13 drying device, can play the effect of dry oxygen, the oxygen purity collected like this is higher, manganese dioxide particle 17 is placed with at the bottom of the inner bottle of conical flask 19, the effect of catalysis hydrogen peroxide can be played, in the glass wireway 5 between narrow-mouthed bottle 14 and nitrogen cylinder 10, valve 11 is installed, be convenient to the turnover controlling nitrogen.
Experimental principle: reaction equation: 2H2O2=2H2O+O2 ↑ (MnO2 catalysis), 2Cu+O2==2CuO, the valve 11 of experiment front opening nitrogen cylinder 10, at this moment nitrogen will mixed gas in emptying conduit, for verifying that oxygen is ready below, sequence air shut-off valve door, first the impermeability of detecting instrument is wanted, then various reagent is put well, experiment starts the valve opening separating funnel, at this moment hydrogen peroxide will resolve into oxygen and water, oxygen can enter in the concentrated sulphuric acid by conduit, water in such oxygen will be completely dried, dried oxygen enters in gas bottle by conduit, after the full oxygen of gas bottle collection, the oxygen meeting had more and copper particle reaction, at this moment will see that copper particle slowly becomes bronzing, this just demonstrates the existence of oxygen.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and improvement design thereof and replace or change, all should be encompassed in protection domain of the present utility model.
Claims (5)
1. test the device with oxygen producing, comprise iron stand (1), hydrogen peroxide (2), bulb shape separatory funnel (3), rubber sleeve (4), glass wireway (5), horminess glass tube (6), copper particle (7), gas bottle (8), second rubber stopper (9), nitrogen cylinder (10), valve (11), wooden unit (12), the concentrated sulphuric acid (13), narrow-mouthed bottle (14), glass bottle stopper (15), first rubber stopper (16), manganese dioxide particle (17), spirit lamp (18), conical flask (19), it is characterized in that: the iron clamp of described iron stand (1) accompanies conical flask (19), described conical flask (19) bottle mouth position is provided with the first rubber stopper (16), and be provided with two perforates in the first rubber stopper (16), bulb shape separatory funnel (3) is inserted with in (16) perforates of described first rubber stopper, plug glass wireway (5) in another perforate of described first rubber stopper (16), and the lower end of glass wireway (5) is away from the bottom of conical flask (19),
Described glass wireway (5) is connected with another glass wireway (5) by rubber sleeve (4), the below of described glass wireway (5) is provided with narrow-mouthed bottle (14), the bottle mouth position of described narrow-mouthed bottle (14) is provided with glass bottle stopper (15), and be provided with three perforates in glass bottle stopper (15), the lower end of described glass wireway (5) extend into narrow-mouthed bottle (14) bottom by a perforate, another two perforates of described glass bottle stopper (15) are all inserted with glass wireway (5), one end of one of them glass wireway (5) described is connected with nitrogen cylinder (10), and another glass wireway (5) connects another glass wireway (5) by rubber sleeve (4),
The below of described glass wireway (5) is provided with gas bottle (8), the bottle mouth position of described gas bottle (8) is provided with the second rubber stopper (9), and be provided with two perforates in the second rubber stopper (9), the lower end of described glass wireway (5) extend into the bottom of gas bottle (8) by a perforate, another tapping described is inserted with glass wireway (5), and the lower end of glass wireway (5) is away from the bottom of gas bottle (8), the other end of described glass wireway (5) is connected with one end of horminess glass tube (6), the other end of described horminess glass tube (6) is connected with glass wireway (5), the bosom of described horminess glass tube (6) is placed with copper particle (7), described copper particle (7) below is provided with spirit lamp (18).
2. a kind of device of testing with oxygen producing according to claim 1, is characterized in that: the below of described narrow-mouthed bottle (14) and spirit lamp (18) is equipped with wooden unit (12).
3. a kind of device of testing with oxygen producing according to claim 1, it is characterized in that: the inside of described bulb shape separatory funnel (3) is contained with hydrogen peroxide (2), is contained with the concentrated sulphuric acid (13) in described narrow-mouthed bottle (14).
4. a kind of device of testing with oxygen producing according to claim 1, is characterized in that: be placed with manganese dioxide particle (17) at the bottom of the inner bottle of described conical flask (19).
5. a kind of device of testing with oxygen producing according to claim 1, is characterized in that: be provided with valve (11) in the glass wireway (5) between described narrow-mouthed bottle (14) and nitrogen cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746849.3U CN205038886U (en) | 2015-09-25 | 2015-09-25 | Prepare device of oxygen for experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746849.3U CN205038886U (en) | 2015-09-25 | 2015-09-25 | Prepare device of oxygen for experiments |
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| Publication Number | Publication Date |
|---|---|
| CN205038886U true CN205038886U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746849.3U Expired - Fee Related CN205038886U (en) | 2015-09-25 | 2015-09-25 | Prepare device of oxygen for experiments |
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| CN (1) | CN205038886U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057047A (en) * | 2016-08-19 | 2016-10-26 | 李永广 | Oxygen preparation demonstration device used for intelligent education |
| CN107221241A (en) * | 2017-06-16 | 2017-09-29 | 罗相平 | One kind teaching chemical experimental instrument |
| CN108844995A (en) * | 2018-05-02 | 2018-11-20 | 辽宁工程技术大学 | A kind of coal spontaneous combustion adiabatic oxygenation experimental bench |
| CN114387857A (en) * | 2020-10-17 | 2022-04-22 | 林晨 | Experimental device for confirm manganese dioxide is as catalyst in potassium chlorate decomposition |
-
2015
- 2015-09-25 CN CN201520746849.3U patent/CN205038886U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057047A (en) * | 2016-08-19 | 2016-10-26 | 李永广 | Oxygen preparation demonstration device used for intelligent education |
| CN106057047B (en) * | 2016-08-19 | 2018-07-17 | 李永广 | A kind of wisdom education produces apparatus for demonstrating with oxygen |
| CN107221241A (en) * | 2017-06-16 | 2017-09-29 | 罗相平 | One kind teaching chemical experimental instrument |
| CN107221241B (en) * | 2017-06-16 | 2024-01-23 | 罗相平 | Teaching chemistry experiment instrument |
| CN108844995A (en) * | 2018-05-02 | 2018-11-20 | 辽宁工程技术大学 | A kind of coal spontaneous combustion adiabatic oxygenation experimental bench |
| CN114387857A (en) * | 2020-10-17 | 2022-04-22 | 林晨 | Experimental device for confirm manganese dioxide is as catalyst in potassium chlorate decomposition |
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| Date | Code | Title | Description |
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| 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: 20160217 Termination date: 20160925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |