CN211292762U - Titration apparatus capable of monitoring pH value - Google Patents
Titration apparatus capable of monitoring pH value Download PDFInfo
- Publication number
- CN211292762U CN211292762U CN201922123372.4U CN201922123372U CN211292762U CN 211292762 U CN211292762 U CN 211292762U CN 201922123372 U CN201922123372 U CN 201922123372U CN 211292762 U CN211292762 U CN 211292762U
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- Prior art keywords
- titration
- container
- groove
- value
- iron stand
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- 238000004448 titration Methods 0.000 title claims abstract description 54
- 238000012544 monitoring process Methods 0.000 title description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000003513 alkali Substances 0.000 abstract description 6
- 230000005418 spin wave Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a titration outfit of pH value can monitor. This titration outfit that can monitor pH value includes the iron stand platform, and the iron stand platform is fixed with the buret clamp, and buret clamp centre gripping buret is provided with the titration container under the buret, on the magnetic stirrers was arranged in to the titration container, be provided with the magnon in the titration container, the titration container outside is provided with the electron pH meter, and the pH electrode of electron pH meter is arranged in the titration container. The utility model discloses set up magnetic stirrers and electron pH meter, but real-time supervision shows the pH value of titrating solution in titrating the container, according to the pH value that shows in real time, more convenient dropwise add acid or alkali to reach and adjust pH value, accomplish the purpose of titrating the reaction.
Description
Technical Field
The utility model relates to an analytical chemistry's analytical equipment technical field, concretely relates to can monitor titration outfit of pH value.
Background
Titration analysis is a simple, rapid and widely applicable quantitative analysis method, and has higher accuracy in constant analysis. The method comprises the following steps: a reagent solution (called standard solution) whose exact concentration is known is added dropwise to the solution of the substance to be measured until the chemical reaction is completed, and then the content of the component to be measured can be determined based on the concentration and volume of the reagent solution used.
A commonly used titration apparatus consists of a burette and a conical flask, and the conical flask is shaken while titration is carried out. However, there are some titration experiments in which the pH of the titration is monitored, for example, the pH of the titration reaction is maintained within a certain range, and when the titration is carried out, an acid or a base is added to adjust the pH. Adding acid or alkali, shaking uniformly, testing the pH value, and repeating the operation if the pH value is not suitable; sometimes, the acid or the alkali is added dropwise in excess and then is added, so the operation is complicated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the conventional method of titrating that mentions in the technical background and operate too loaded down with trivial details when being used for the titration analysis of needs monitoring pH value, the utility model provides a neotype laboratory glassware makes it can be when titrating convenient detection titration process in the pH value.
In order to achieve the above object, the utility model relates to a titration outfit capable of monitoring pH value adopts following technical scheme:
the utility model provides a can monitor titration outfit of pH value, includes the iron stand platform, and the iron stand platform is fixed with the buret clamp, and buret clamp centre gripping buret is provided with under the buret and titrates the container, titrate the container and arrange magnetic stirrer in on, titrate the container and be provided with the magnon in, titrate the container outside and be provided with the electron pH meter, the pH electrode of electron pH meter is arranged in titrating the container. The magnetic stirrer and the electronic pH meter are arranged, the pH value of the titration solution in the titration container can be monitored and displayed in real time, and acid or alkali can be more conveniently dripped according to the real-time displayed pH value, so that the purposes of adjusting the pH value and finishing titration reaction are achieved.
Specifically, the pH electrode is fixed inside the titration container through a fixing plate, the fixing plate comprises a supporting part and a clamping part which are integrally formed, the supporting part is provided with a through groove for an iron support to pass through, the supporting part is also provided with a thread groove which is perpendicular to the through groove, the thread groove is communicated with the through groove, a bolt is arranged in the thread groove, and the bolt abuts against the iron support to fixedly support the fixing plate; the clamping part is U-shaped, and the both sides wall symmetry of U-shaped clamping part is provided with arc splint, arc splint are connected with the lateral wall of clamping part through the spring. The key of pH monitoring is the contact of the pH electrode and the titration solution, and if the pH electrode is fixed on the titration container through a fixing clamp in the prior art, the pH electrode can influence the pH monitoring along with the vibration when the titration container vibrates. Therefore, the utility model discloses a fixed plate with the unsettled titration container of arranging in of pH electrode, avoided the condition of pH electrode with titrating the container contact, guaranteed to titrate the stability of in-process to the pH monitoring.
Specifically, one end of the arc-shaped clamping plate, which is close to the gap of the U-shaped clamping part, is outwards provided with a guide plate. The arrangement of the guide plate is convenient for the pH electrode to be inserted into the arc-shaped clamping plate, and the pH electrode cannot be damaged.
Specifically, the arc splint are rubber arc splint, the deflector is the rubber deflector. The guide plate and the arc-shaped clamping plate are made of rubber, and the pH electrode is protected to a certain extent by utilizing the characteristic that rubber has elasticity.
Specifically, the length of the guide plate is smaller than that of the arc-shaped clamping plate. The arc splint play the centre gripping fixed action to the pH electrode, and the deflector then plays the guide effect, and for material saving, it is shorter to set for the deflector.
Specifically, a plurality of anti-skid protrusions are arranged on the groove surface of the through groove opposite to the spiral groove. The arrangement of the anti-skid protrusions further increases the fixing and fastening effect of the bolts on the fixing plate.
Specifically, the length of the fixing plate is smaller than the distance between the burette and the iron support. Because buret, pH electrode share same iron stand platform, in order to guarantee mutual noninterference between the two, the length of setting for the fixed plate is shorter, guarantees to titrate reaction, pH monitoring and go on when both, and efficient good.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses set up magnetic stirrers and electron pH meter, but real-time supervision shows the pH value of titrating solution in titrating the container, according to the pH value that shows in real time, more convenient dropwise add acid or alkali to reach and adjust pH value, accomplish the purpose of titrating the reaction.
2. The utility model discloses a set up the fixed plate with the unsettled titration container of arranging in of pH electrode, avoided the contact of pH electrode with titration container wall, guarantee the stability of pH electrode, and then guarantee stability, the accuracy of pH monitoring.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of a fixing plate of the present invention;
FIG. 3 is a schematic top view of a fixed plate without a pH electrode clamped;
fig. 4 is a schematic top view of the working state of the fixing plate clamping the pH electrode.
In the figure: 10 iron stand, 20 burette clamps, 30 burette, 40 titration container, 50 magnetic stirrer, 51 magneton, 60 fixed plate, 61 support part, 62 clamping part, 63 through groove, 64 thread groove, 65 bolt, 66 antiskid bulge, 67 arc splint, 68 spring, 69 guide plate, 70 electronic pH meter, 71 pH electrode,
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a titration apparatus capable of monitoring pH value, comprising an iron stand 10, wherein the iron stand is arranged on a horizontal plane, the iron stand is fixed with a burette clamp 20 through a cross clamp, the burette clamp clamps a burette 30, a titration container 40 is arranged under the burette, and the titration container can be a beaker, a flask or other open container. The titration container 40 is arranged on the magnetic stirrer 50, a magneton 51 is arranged in the titration container, an electronic pH meter 70 is arranged outside the titration container, and a pH electrode 71 of the electronic pH meter is arranged in the titration container 40. The pH electrode 71 is suspended in the titration container 40 through the fixing plate 60, and the detection end of the pH electrode 71 is in contact with the titration solution. The fixed plate 60 comprises a supporting part 61 and a clamping part 62 which are integrally formed, the supporting part 61 is provided with a through groove 63 for the iron stand platform 10 to pass through, the supporting part is further provided with a thread groove 64 perpendicular to the through groove 63, the thread groove is communicated with the through groove, a bolt 65 is arranged in the thread groove, and the bolt supports against the iron stand platform to fixedly support the fixed plate. The groove surface opposite to the thread groove of the through groove is provided with a plurality of anti-skid protrusions 66, so that the fixing plate and the iron support are fastened more conveniently. Clamping part 62 is the U-shaped, and two inside wall symmetries of U-shaped clamping part are provided with arc splint 67, be formed with the centre gripping space that is used for centre gripping pH electrode 71 between the arc splint 67, the arc splint is connected with the inside wall of clamping part through elastomeric element, and elastomeric element can be compression spring 68, and is concrete, and the spring can set up to be two sets of, and vertical direction is laid. The end of the arc-shaped clamping plate 67 close to the U-shaped clamping part gap is provided with a guide plate 69 which is bent towards two sides. The arc-shaped clamping plate and the guide plate can be integrally formed. The arc-shaped clamping plate and the guide plate are both made of elastic materials. Specifically, the clamping plate can be an arc-shaped clamping plate or a guide plate made of rubber; or the arc-shaped clamping plate and the guide plate are elastic metal sheets. The length of the guide plate 69 is smaller than that of the arc-shaped clamp plate 67. The length of fixed plate is less than the distance between buret and the iron stand platform, and the distance between pH electrode and the iron stand platform is less than the distance between buret and the iron stand platform promptly. Or the fixing plate and the burette are arranged in a staggered mode, namely the fixing plate and the burette do not interfere with each other.
The utility model discloses a theory of operation does: when the buret carries out the titration, magnetic stirrers starts, and the magneton stirs titrating solution in titrating the container, is fixed in the iron stand platform with the pH electrode through the fixed plate for the sense terminal of pH electrode contacts with titrating solution, thereby realizes the pH value of real-time supervision titrating solution, and according to the pH value that shows in real time again, more convenient dropwise add acid or alkali, in order to reach regulation pH value, accomplish the purpose of titrating the reaction. In order to guarantee the stability of pH monitoring, the pH electrode is fixed by the arc splint centre gripping on the fixed plate, simultaneously, for making the pH electrode can be more convenient by the arc splint centre gripping, set up the rubber deflector and lead to, because the use of rubber material, the deflector can not cause the damage to the pH electrode yet.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a can monitor titration outfit of pH value, includes the iron stand platform, and the iron stand platform is fixed with burette clamp, burette clamp centre gripping burette, is provided with under the burette and titrates container, its characterized in that: the titration container is arranged on the magnetic stirrer, a magneton is arranged in the titration container, an electronic pH meter is arranged on the outer side of the titration container, and a pH electrode of the electronic pH meter is arranged in the titration container.
2. The titration device according to claim 1, wherein: the pH electrode is fixedly arranged in the titration container through a fixing plate, the fixing plate comprises a supporting part and a clamping part which are integrally formed, the supporting part is provided with a through groove for an iron stand to pass through, the supporting part is also provided with a thread groove which is vertical to the through groove, the thread groove is communicated with the through groove, a bolt is arranged in the thread groove, and the bolt props against the iron stand to fixedly support the fixing plate; the clamping part is U-shaped, and the both sides wall symmetry of U-shaped clamping part is provided with arc splint, arc splint are connected with the lateral wall of clamping part through the spring.
3. The titration device according to claim 2, wherein: and one end of the arc-shaped clamping plate, which is close to the gap of the U-shaped clamping part, is outwards provided with a guide plate.
4. The titration device according to claim 3, wherein: the arc splint are rubber arc splint, the deflector is the rubber deflector.
5. The titration device according to claim 4, wherein: the length of the guide plate is smaller than that of the arc-shaped clamping plate.
6. The titration device according to claim 2, wherein: and a plurality of anti-skid bulges are arranged on the groove surface of the through groove opposite to the spiral groove.
7. The titration device according to any one of claims 2-6, wherein: the length of fixed plate is less than the distance between buret and the iron stand platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123372.4U CN211292762U (en) | 2019-12-02 | 2019-12-02 | Titration apparatus capable of monitoring pH value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123372.4U CN211292762U (en) | 2019-12-02 | 2019-12-02 | Titration apparatus capable of monitoring pH value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211292762U true CN211292762U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922123372.4U Expired - Fee Related CN211292762U (en) | 2019-12-02 | 2019-12-02 | Titration apparatus capable of monitoring pH value |
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| Country | Link |
|---|---|
| CN (1) | CN211292762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291003A (en) * | 2022-07-04 | 2022-11-04 | 上海博取仪器有限公司 | PH electrode automatic checkout device |
-
2019
- 2019-12-02 CN CN201922123372.4U patent/CN211292762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291003A (en) * | 2022-07-04 | 2022-11-04 | 上海博取仪器有限公司 | PH electrode automatic checkout device |
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| 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: 20200818 |