CN216538514U - Special bottle for storing and taking sodium hydroxide saturated solution - Google Patents
Special bottle for storing and taking sodium hydroxide saturated solution Download PDFInfo
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- CN216538514U CN216538514U CN202121727236.7U CN202121727236U CN216538514U CN 216538514 U CN216538514 U CN 216538514U CN 202121727236 U CN202121727236 U CN 202121727236U CN 216538514 U CN216538514 U CN 216538514U
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Abstract
A special bottle for storing and taking saturated sodium hydroxide solution comprises a bottle body, an air duct, a sampling duct and a dropper, wherein a sealing cavity in the bottle body is used for containing the saturated sodium hydroxide solution, the air duct is inserted into the sealing cavity from the outside of the bottle body and is not inserted into the contained saturated sodium hydroxide solution so as to enable air in the sealing cavity to be communicated with external air, absorbent cotton and soda lime are filled in the air duct, the sampling duct is inserted into the sealing cavity from the outside of the bottle body and is inserted into the contained saturated sodium hydroxide solution, the sampling duct is provided with a one-way check valve for containing the saturated sodium hydroxide solution to flow out in one direction through the sampling duct in a matching mode, the dropper is used for being in plug-in connection with the sampling duct, and the dropper is inserted into the sampling duct so as to achieve sampling of the saturated sodium hydroxide solution. The special bottle for storing and taking the saturated solution of sodium hydroxide improves the working efficiency and accuracy of a laboratory; moreover, the utility model has simple structure and convenient use.
Description
Technical Field
The utility model relates to the field of chemical solution storage devices, in particular to a special bottle for storing and taking a sodium hydroxide saturated solution.
Background
The preparation of the sodium hydroxide titration solution generally needs to use a saturated sodium hydroxide solution, when a common polyester bottle is filled with the saturated sodium hydroxide solution, the cap is opened to contact carbon dioxide, sodium hydroxide can generate sodium carbonate with the saturated sodium hydroxide solution, and when a graduated pipette is used for taking supernatant, if the saturated sodium hydroxide solution is exposed in the air and contacts the carbon dioxide to react, the solution is continuously turbid, so that a destructive test is caused. In addition, when liquid is taken, if the solution in the suction pipe flows backwards, the saturated sodium hydroxide solution is very easy to become turbid, the saturated sodium hydroxide solution cannot be used after the solution is turbid, the solution can be clarified at least about 5 days after the solution is turbid, the accuracy of the test can be influenced if the absorbed solution contains sodium carbonate, and the efficiency of the inspection work can be delayed if the clarification waiting time is too long.
Therefore, the existing test bottle for containing the saturated solution of sodium hydroxide needs to be improved so as to improve the test efficiency and the test stability.
SUMMERY OF THE UTILITY MODEL
Based on the technical scheme, the utility model provides the special bottle for storing and taking the saturated sodium hydroxide solution, and aims to solve the technical problem that the test bottle for containing the saturated sodium hydroxide solution in the prior art influences the test efficiency and the test stability.
In order to achieve the purpose, the utility model provides a special bottle for storing and taking a saturated solution of sodium hydroxide, which comprises a bottle body, an aeration conduit, a sampling conduit and a dropper, the sealed cavity in the bottle body is used for containing saturated sodium hydroxide solution, the vent pipe is inserted into the sealed cavity from the outside of the bottle body and is not inserted into the contained saturated sodium hydroxide solution so as to lead the air in the sealed cavity to be communicated with the outside air, the air-permeable conduit is filled with absorbent cotton and soda lime, the sampling conduit is inserted into the sealed cavity from the outside of the bottle body and is inserted into the contained saturated solution of sodium hydroxide, the sampling guide pipe is provided with the one-way check valve for containing the saturated solution of sodium hydroxide to flow out in one way through the sampling guide pipe, the dropper is used for being in plug-in fit with the sampling conduit, and the dropper is inserted into the sampling conduit to realize sampling of the sodium hydroxide saturated solution.
In a further preferred embodiment of the present invention, the aeration conduit includes a conduit body and a filling chamber provided in the conduit body in a sac-like shape, and the absorbent cotton and the soda lime are filled in the filling chamber.
As a further preferable technical solution of the present invention, the soda lime is wrapped by the absorbent cotton in the filling cavity.
As a further preferable technical scheme of the present invention, the bottle body is connected with a bottle cap, and the bottle cap is used for sealing an inner cavity of the bottle body to form the sealed cavity.
In a further preferred embodiment of the present invention, the vent tube and the sampling tube are respectively mounted on the bottle cap and extend downward through a sealed cavity in the bottle body.
As a further preferable technical solution of the present invention, the bottle body is a plastic bottle.
By adopting the technical scheme, the special bottle for storing and taking the saturated sodium hydroxide solution skillfully designs the air duct and the sampling duct, so that carbon dioxide in the outside air can be prevented from entering a sealed cavity of the bottle body, the backflow can be avoided when liquid is sucked, the supernatant of the saturated sodium hydroxide solution can be kept from being turbid all the time, and the working efficiency and the accuracy of a laboratory are improved; moreover, the utility model has simple integral structure and convenient use.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of an example of a bottle for storing and taking out a saturated solution of sodium hydroxide according to the present invention.
In the figure: 1. the device comprises a sampling catheter, 2 a ventilation catheter, 3 a absorbent cotton, 4 a soda lime, 5 a one-way check valve, 6 a bottle cap, 7 a bottle body, 8 a dropper, 9 a rubber head, 10 and a plastic tube.
The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for clarity of description only, and are not used to limit the scope of the utility model, and the relative relationship between the terms and the terms is not changed or modified substantially without changing the technical content of the utility model.
The special bottle for storing and taking the saturated sodium hydroxide solution as shown in fig. 1 comprises a bottle body 7, an air duct 2, a sampling duct 1 and a dropper 8, wherein a sealed cavity in the bottle body 7 is used for containing the saturated sodium hydroxide solution, the sampling duct 1 and the dropper 8 are matched to absorb clear sodium hydroxide liquid on the upper layer of the saturated sodium hydroxide solution, the air duct 2 is connected with external air so that the sealed cavity is consistent with an external pressure difference, and the dropper 8 is convenient for absorbing the clear sodium hydroxide liquid from the sealed cavity of the bottle body 7.
Specifically, the vent pipe 2 is inserted into the sealed cavity from the outside of the bottle body 7 and is not inserted into the contained sodium hydroxide saturated solution so as to communicate the air in the sealed cavity with the outside air, the absorbent cotton 3 and the soda lime 4 are filled in the vent pipe 2, the absorbent cotton 3 and the soda lime 4 are matched to absorb the carbon dioxide in the air entering the sealed cavity through the vent pipe 2, the carbon dioxide in the air is prevented from contacting the air to generate sodium carbonate, and therefore the stability of the sodium hydroxide saturated solution is guaranteed.
The sampling guide pipe 1 is inserted into the sealed cavity from the outside of the bottle body 7 and is inserted into the contained sodium hydroxide saturated solution, the sampling guide pipe 1 is provided with the one-way check valve 5 for containing the sodium hydroxide saturated solution to flow out in one way through the sampling guide pipe 1, the dropper 8 is used for being matched with the sampling guide pipe 1 in an inserted mode, and the dropper 8 is inserted into the sampling guide pipe 1 to sample the sodium hydroxide saturated solution. Through setting up one-way check valve 5, can not flow backwards when having guaranteed to absorb liquid, can keep the saturated solution supernatant of sodium hydroxide not to be made muddy all the time to the work efficiency and the degree of accuracy in laboratory have been improved. The lower end pipe orifice of the sampling conduit 1 is positioned in the clear liquid of the sodium hydroxide saturated solution and is not contacted with the bottom of the sealed cavity, so that turbid liquid or sediment at the bottom can not be sucked when the liquid is taken.
The dropper 8 is a common test article for a laboratory, and generally comprises a rubber head 9 and a plastic pipe 10 which are connected, wherein the plastic pipe 10 is inserted into the sampling conduit 1, then the rubber head 9 is manually extruded, the rubber head 9 rebounds to suck air, and then the sodium hydroxide saturated solution can be sucked into the plastic pipe 10 through the sampling conduit 1. Of course, other types of dropper tubes 8 may be used and will not be described in detail here.
In a specific implementation, the ventilation catheter 2 comprises a catheter body and a filling cavity arranged in the catheter body in a bag shape, the absorbent cotton 3 and the soda lime 4 are filled in the filling cavity, the soda lime 4 is wrapped by the absorbent cotton 3 in the filling cavity, namely, the filling cavity blocks holes communicated with the catheter body at two ends through the absorbent cotton 3 so as to limit the soda lime 4 in the filling cavity.
In another specific implementation, the bottle body 7 is connected with a bottle cap 6, the bottle cap 6 is used for sealing an inner cavity of the bottle body 7 to form the sealed cavity, the sealed cavity can be opened through the bottle cap 6, so that a prepared sodium hydroxide saturated solution can be conveniently injected into the bottle body 7, and the bottle cap 6 and the bottle body 7 can be matched through screws to realize sealed connection.
Preferably, the vent tube 2 and the sampling tube 1 are respectively mounted on the bottle cap 6 and extend downward through the sealed cavity in the bottle body 7 for easy assembly.
Specifically, the bottle body 7 is a plastic bottle made of plastic material, and other materials can be adopted, which are not listed here.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims.
Claims (6)
1. A special bottle for storing and taking saturated solution of sodium hydroxide, which is characterized by comprising a bottle body, an aeration conduit, a sampling conduit and a dropper, the sealed cavity in the bottle body is used for containing saturated sodium hydroxide solution, the vent pipe is inserted into the sealed cavity from the outside of the bottle body and is not inserted into the contained saturated sodium hydroxide solution so as to lead the air in the sealed cavity to be communicated with the outside air, the air-permeable conduit is filled with absorbent cotton and soda lime, the sampling conduit is inserted into the sealed cavity from the outside of the bottle body and is inserted into the contained saturated solution of sodium hydroxide, the sampling conduit is provided with a one-way check valve for containing the saturated solution of sodium hydroxide to flow out in one direction through the sampling conduit, the dropper is used for being in plug-in fit with the sampling conduit, and the dropper is inserted into the sampling conduit to realize sampling of the sodium hydroxide saturated solution.
2. The special bottle for storing and taking saturated solution of sodium hydroxide as claimed in claim 1, wherein the aeration conduit is composed of a conduit body and a filling cavity arranged in the conduit body in a bag shape, and the absorbent cotton and the soda lime are filled in the filling cavity.
3. The special bottle for storing and taking saturated solution of sodium hydroxide as claimed in claim 2, wherein the soda lime is wrapped by the absorbent cotton in the filling cavity.
4. The special bottle for storing and taking saturated solution of sodium hydroxide as claimed in claim 1, wherein a bottle cap is connected to the bottle body and used for sealing the inner cavity of the bottle body to form the sealed cavity.
5. The special bottle for storing and taking saturated solution of sodium hydroxide as claimed in claim 4, wherein the vent pipe and the sampling pipe are respectively installed on the bottle cap and extend downwards to penetrate into the sealed cavity in the bottle body.
6. The special bottle for storing and taking saturated solution of sodium hydroxide as claimed in any one of claims 1 to 5, wherein the bottle body is a plastic bottle made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121727236.7U CN216538514U (en) | 2021-07-28 | 2021-07-28 | Special bottle for storing and taking sodium hydroxide saturated solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121727236.7U CN216538514U (en) | 2021-07-28 | 2021-07-28 | Special bottle for storing and taking sodium hydroxide saturated solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216538514U true CN216538514U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121727236.7U Active CN216538514U (en) | 2021-07-28 | 2021-07-28 | Special bottle for storing and taking sodium hydroxide saturated solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216538514U (en) |
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2021
- 2021-07-28 CN CN202121727236.7U patent/CN216538514U/en active Active
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