CN210574589U - Experimental device for preparing oxygen by using hydrogen peroxide - Google Patents
Experimental device for preparing oxygen by using hydrogen peroxide Download PDFInfo
- Publication number
- CN210574589U CN210574589U CN201921047600.8U CN201921047600U CN210574589U CN 210574589 U CN210574589 U CN 210574589U CN 201921047600 U CN201921047600 U CN 201921047600U CN 210574589 U CN210574589 U CN 210574589U
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- Prior art keywords
- air duct
- filled
- hydrogen peroxide
- rubber plug
- hole rubber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 56
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000001301 oxygen Substances 0.000 title claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 14
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920001971 elastomer Polymers 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004816 latex Substances 0.000 claims abstract description 20
- 229920000126 latex Polymers 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000002474 experimental method Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The utility model provides an experimental device for with hydrogen peroxide system oxygen, its main characterized in that: the device comprises a wide-mouth bottle (2) filled with manganese dioxide (1), a double-hole rubber plug (3), a separating funnel (4) filled with hydrogen peroxide, a first air duct (5), a first latex tube (6), a drying tube (7), a single-hole rubber plug (8), a second air duct (9), a second latex tube (10), a third air duct (11), a gas collecting bottle (12) filled with water and a water tank (13) filled with water. The oxygen generation by using the experimental device in the textbook has the following defects: when the concentration of the hydrogen peroxide is slightly higher, the reaction is often violent, so that the hydrogen peroxide is sprayed out of the gas guide tube, and the experiment is influenced. The experimental device for preparing oxygen by using hydrogen peroxide in the textbook is improved, so that the improved device has no defects.
Description
One, the technical field
The utility model belongs to a chemistry field relates to a chemistry experimental apparatus, and is specifically used for demonstrating the experiment of laboratory system oxygen on junior high school chemistry textbook.
Second, background Art
A nine-grade chemical textbook published by Shanghai education publisher in 7 months 2014, page 36 of which is printed with hydrogen peroxide to prepare oxygen, is operated in the textbook in such a way that: filling a small amount of manganese dioxide in the conical flask, then plugging a double-hole rubber plug with a separating funnel and a gas guide tube, slowly adding dilute hydrogen peroxide into the conical flask filled with a small amount of manganese dioxide powder from the separating funnel, collecting gas in the gas collecting flask, and extending a wood strip with a spark into the gas collecting flask. The oxygen preparation by the experimental device in the textbook has the following defects: when the concentration of the hydrogen peroxide is slightly higher, the reaction is often violent, and the hydrogen peroxide is sprayed out of the gas-guide tube, so that the experiment is influenced. The experimental device for preparing oxygen by using hydrogen peroxide in textbooks is improved, so that the improved device has no defects.
Third, the contents of the utility model
The utility model aims to provide an experimental device for with hydrogen peroxide solution system oxygen uses the utility model discloses system oxygen can prevent to lead to hydrogen peroxide solution from the air duct blowout because of the reaction is more violent.
The purpose of the utility model is realized by the following method:
an experimental device for preparing oxygen by using hydrogen peroxide is mainly characterized in that: the device comprises a wide-mouth bottle (2) filled with manganese dioxide (1), a double-hole rubber plug (3), a separating funnel (4) filled with hydrogen peroxide, a first air duct (5), a first latex tube (6), a drying tube (7), a single-hole rubber plug (8), a second air duct (9), a second latex tube (10), a third air duct (11), a gas collecting bottle (12) filled with water and a water tank (13) filled with water.
The wide-necked bottle (2) with manganese dioxide (1) is tightly plugged by a double-hole rubber plug (3) with a separating funnel (4) and a first air duct (5), the first latex tube (6) is connected with a first air duct (5) at the outer end of the double-hole rubber plug (3) and a lower end tube opening of a drying tube (7), a single-hole rubber plug (8) with a second air duct (9) is tightly plugged by an upper end tube opening of the drying tube (7), the second latex tube (10) is connected with a second air duct (9) at the outer end of the single-hole rubber plug (8) and one end of a third air duct (11), and the other end of the third air duct (11) extends to a gas collecting bottle (12) opening which is filled with water and is inverted in a water tank (13).
The experimental process comprises the following steps: the instrument was connected and the air tightness of the device was checked. A right amount of manganese dioxide (1) is filled in the wide-mouth bottle (2), the separating funnel (4) and the first air duct (5) are respectively inserted on the double-hole rubber plug (3), and the wide-mouth bottle (2) filled with the manganese dioxide (1) is tightly plugged by the double-hole rubber plug (3) with the separating funnel (4) and the first air duct (5). The lower end pipe orifice of a first air duct (5) at the outer end of the double-hole rubber plug (3) and the drying pipe (7) are connected through a first latex pipe (6), a second air duct (9) is inserted into the single-hole rubber plug (8), and the upper end pipe orifice of the drying pipe (7) is tightly plugged through the single-hole rubber plug (8) with the second air duct (9). A second latex tube (10) is connected with one end of a second air duct (9) and one end of a third air duct (11) at the outer end of the single-hole rubber plug (8), and the other end of the third air duct (11) extends to a gas collecting bottle (12) opening which is filled with water and is inverted in a water tank (13). During the experiment, a proper amount of hydrogen peroxide is added into the separating funnel (4), the piston of the separating funnel (4) is opened, and the hydrogen peroxide flows into the wide-mouth bottle (2) filled with manganese dioxide (1), so that the following conditions can be observed: a large amount of bubbles are generated in the wide-mouth bottle (2), and the drying tube (7) is used for buffering, so that even if the reaction is violent, hydrogen peroxide cannot be sprayed out from the air guide tube, and the experiment is safe.
The utility model has the advantages that: the drying tube (7) plays a role in buffering, so that even if the reaction is severe, hydrogen peroxide cannot be sprayed out of the air guide tube, and the experiment is safe. The device has strong universality and can be repeatedly used, and is suitable for teachers to perform demonstration experiments and students to perform grouping experiments.
Description of the drawings
Fig. 1 is a structural view of the present invention.
The symbols in the figures represent:
(1) manganese dioxide (2), a wide-mouth bottle (3), a double-hole rubber plug (4), a separating funnel (5) filled with hydrogen peroxide, a first air duct (6), a first latex tube (7), a drying tube (8), a single-hole rubber plug (9), a second air duct (10), a second latex tube (11), a gas collecting bottle (13) filled with water and a gas collecting tank (13) filled with water and provided with a third air duct (12)
Fifth, detailed description of the invention
The present invention will be further described with reference to the following detailed description:
an experimental device for preparing oxygen by using hydrogen peroxide is mainly characterized in that: the device comprises a wide-mouth bottle (2) filled with manganese dioxide (1), a double-hole rubber plug (3), a separating funnel (4) filled with hydrogen peroxide, a first air duct (5), a first latex tube (6), a drying tube (7), a single-hole rubber plug (8), a second air duct (9), a second latex tube (10), a third air duct (11), a gas collecting bottle (12) filled with water and a water tank (13) filled with water.
The wide-necked bottle (2) with manganese dioxide (1) is tightly plugged by a double-hole rubber plug (3) with a separating funnel (4) and a first air duct (5), the first latex tube (6) is connected with a first air duct (5) at the outer end of the double-hole rubber plug (3) and a lower end tube opening of a drying tube (7), a single-hole rubber plug (8) with a second air duct (9) is tightly plugged by an upper end tube opening of the drying tube (7), the second latex tube (10) is connected with a second air duct (9) at the outer end of the single-hole rubber plug (8) and one end of a third air duct (11), and the other end of the third air duct (11) extends to a gas collecting bottle (12) opening which is filled with water and is inverted in a water tank (13).
The utility model discloses a use method: the instrument was connected and the air tightness of the device was checked. A right amount of manganese dioxide (1) is filled in the wide-mouth bottle (2), the separating funnel (4) and the first air duct (5) are respectively inserted on the double-hole rubber plug (3), and the wide-mouth bottle (2) filled with the manganese dioxide (1) is tightly plugged by the double-hole rubber plug (3) with the separating funnel (4) and the first air duct (5). The lower end pipe orifice of a first air duct (5) at the outer end of the double-hole rubber plug (3) and the drying pipe (7) are connected through a first latex pipe (6), a second air duct (9) is inserted into the single-hole rubber plug (8), and the upper end pipe orifice of the drying pipe (7) is tightly plugged through the single-hole rubber plug (8) with the second air duct (9). A second latex tube (10) is connected with one end of a second air duct (9) and one end of a third air duct (11) at the outer end of the single-hole rubber plug (8), and the other end of the third air duct (11) extends to a gas collecting bottle (12) opening which is filled with water and is inverted in a water tank (13). During the experiment, a proper amount of hydrogen peroxide is added into the separating funnel (4), the piston of the separating funnel (4) is opened, and the hydrogen peroxide flows into the wide-mouth bottle (2) filled with manganese dioxide (1), so that the following conditions can be observed: a large amount of bubbles are generated in the wide-mouth bottle (2), and the drying tube (7) is used for buffering, so that even if the reaction is violent, hydrogen peroxide cannot be sprayed out from the air guide tube, and the experiment is safe. The utility model has the advantages that: the drying tube (7) plays a role in buffering, so that even if the reaction is severe, hydrogen peroxide cannot be sprayed out of the gas guide tube, and the experiment is safe; the device has strong universality and can be repeatedly used, and is suitable for teachers to perform demonstration experiments and students to perform grouping experiments.
Claims (1)
1. An experimental device for preparing oxygen by using hydrogen peroxide is mainly characterized in that: the device comprises a wide-mouth bottle (2) filled with manganese dioxide (1), a double-hole rubber plug (3), a separating funnel (4) filled with hydrogen peroxide, a first air duct (5), a first latex tube (6), a drying tube (7), a single-hole rubber plug (8), a second air duct (9), a second latex tube (10), a third air duct (11), a gas collecting bottle (12) filled with water and a water tank (13) filled with water, wherein the wide-mouth bottle (2) filled with the manganese dioxide (1) is tightly plugged by the double-hole rubber plug (3) with the separating funnel (4) and the first air duct (5), the first latex tube (6) is connected with the first air duct (5) at the outer end of the double-hole rubber plug (3) and the lower end of the drying tube (7), the upper end pipe orifice of the drying tube (7) is tightly plugged by the single-hole rubber plug (8) with the second air duct (9), the second latex tube (10) is connected with the second air duct (9) at the outer end of the single-hole rubber plug (8) and one end of the third air, the other end of the third air duct (11) extends to the mouth of a gas collecting bottle (12) which is filled with water and is inverted in the water tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921047600.8U CN210574589U (en) | 2019-07-07 | 2019-07-07 | Experimental device for preparing oxygen by using hydrogen peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921047600.8U CN210574589U (en) | 2019-07-07 | 2019-07-07 | Experimental device for preparing oxygen by using hydrogen peroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210574589U true CN210574589U (en) | 2020-05-19 |
Family
ID=70645411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921047600.8U Expired - Fee Related CN210574589U (en) | 2019-07-07 | 2019-07-07 | Experimental device for preparing oxygen by using hydrogen peroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210574589U (en) |
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2019
- 2019-07-07 CN CN201921047600.8U patent/CN210574589U/en not_active Expired - Fee Related
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| 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: 20200519 Termination date: 20210707 |