CN2090060U - Precision coulomb burette electric tank - Google Patents
Precision coulomb burette electric tank Download PDFInfo
- Publication number
- CN2090060U CN2090060U CN 91201607 CN91201607U CN2090060U CN 2090060 U CN2090060 U CN 2090060U CN 91201607 CN91201607 CN 91201607 CN 91201607 U CN91201607 U CN 91201607U CN 2090060 U CN2090060 U CN 2090060U
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- CN
- China
- Prior art keywords
- pond
- jack
- preelectrolysis
- titration
- electrode
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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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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to an electrolytic cell, which is a double-deck structure composed of a pre-electrolysis cell and a titration cell. The utility model can be dismounted and combined. The titration cell not only can be used for the dissolving and chemical treatment of the sample to be analyzed and but can be combined into an entire electrolytic cell system for carrying out precise coulometric analysis. When precision measurement is carried out, the entire electrolytic cell is a sealing system, and inert gas is adopted to continuously eliminate air, which ensures experimental solution to be free of the interference of air. The analytical precision of the utility model can reach more than 0.03%. The utility model is especially suitable for measuring the main constituent and purity of material, such as measuring the purity of gold, platina, etc.
Description
The utility model belongs to the device with electrochemical method test or analysis of material.
In coulometric analysis with constant current, electrolytic cell is an important device.Up to the present, the coulometric titration electrolytic cell is divided into GENERAL TYPE and H type two big classes.Former structure is comparatively simple, and mainly by a beaker with have working electrode to forming with the right lid of indicator electrode, this electrolytic cell is owing to be difficult to seal, and preelectrolysis and sample determination carry out in same electrolytic cell in addition, are difficult to micrometric measurement.H type electrolytic cell is formed by connecting by cathode chamber, anode chamber and the horizontal tube between them; Cathode chamber, anode chamber are horizontal positioned and respectively wear the lid of respective electrode and nitrogen inlet, and two middle cells that are separated to form by three sheet glass sand cores are arranged in the middle of the horizontal tube, and cell respectively has the arm of a band piston to be connected with pump.H type electrolytic cell can be used in rigorous analysis, especially to the quantitative measurement of standard reagent purity, but because the structure more complicated, and fixedly use, can not dual-purpose come that need are carried out the pretreated material of sample dissolution (as the solid sample of metal, alloy etc.) and carry out micrometric measurement.Disclose a kind of " Coulometric titration pool " for Chinese patent application CN89206940.6 number, comprised pond body, electrolytic anode, electrolysis cathode, indicator electrode, reference electrode, electrolytic solution etc.It is characterized in that anode and negative electrode place the side in the electrolytic cell, indication-reference electrode is opposite to opposite side; The distance of electrolytic anode and electrolysis cathode is 25～35mm, and the distance of indicator electrode and reference electrode is 8～12mm, and the distance of indicator electrode and electrolysis cathode is 18～22mm.This electrolytic cell belongs to dynamic Coulometric titration pool, is used for the environmental protection aspect more, measures the micro constitutent in the gas, and the major component, the purity that are unsuitable for material are carried out rigorous analysis.
It is a kind of detachable and combination that the purpose of this utility model is to provide, sealing and double deck type structure electrolysis pond that can get rid of air in the electrolytic solution continuously.
Electrolytic cell described in the utility model is made up of preelectrolysis pond and titration cell.The preelectrolysis pond is that last son with cover, bottom are the container of funnel type, indication, reference electrode jack is arranged, work-auxiliary electrode jack and snorkel jack on its lid; Titration cell is a beaker with a lid, and indicator electrode, reference electrode jack are arranged on its lid, work, auxiliary electrode jack and snorkel jack.The funnel type bottom in preelectrolysis pond is connected by being attached thereto logical gas, fluid catheter and titration cell, the snorkel jack in preelectrolysis pond is connected with the snorkel jack of titration cell by the inert gas conduit, and the inert gas conduit forms the loop with above-mentioned gas, fluid catheter again.The equal seal arrangement of each electrode jack on above-mentioned lid and pond, preelectrolysis pond body, titration cell pond body and the lid.Preelectrolysis pond, titration cell are made by glass, and between its lid and pond, preelectrolysis pond body, the titration cell pond body, each jack on the lid is that ground cooperates.Working electrode adopts the insertion of falling the ground in the titration cell.In the preelectrolysis pond, auxiliary electrode and working electrode are connected as a single entity becomes work-auxiliary electrode.
Accurate coulometric titration electrolyser construction described in the utility model is flexible, good seal performance.Titration cell can be combined to again in the whole electrolytic cell system and carry out accurate coulometry as dissolving, the chemical treatment of sample to be analyzed, and its lid can adapt with a plurality of titration cell bodies, to carry out the assay determination of a plurality of samples; The preelectrolysis pond can import titration cell to the electrolyte solution pre-service with the solution of handling well easily; Working electrode in the titration cell makes the area of working electrode correspondingly to enlarge, thereby has improved assay determination speed owing to adopted the form of falling the ground to insert.Whole electrolytic cell is a sealing system, and adopt the continuous deaeration of inert gas, thereby guaranteed that the experimental solutions system avoids the interference of air, is increased to more than 0.03% analytical precision, be particularly suitable for main composition, the purity of material are measured, as measure purity of gold, platinum etc.
Fig. 1 is the utility model structural drawing.
Fig. 2 is a preelectrolysis pond vertical view.
Fig. 3 is the titration cell vertical view.
Fig. 4 works-auxiliary electrode structure figure in the preelectrolysis pond.
Below in conjunction with a description of drawings embodiment of the present utility model.
As shown in Figure 1, electrolytic cell described in the utility model is by preelectrolysis pond 1, titration cell 2, and gas, fluid catheter 3, inert gas conduit 4 constitute jointly.There is lid 5 in preelectrolysis pond 1, indicator electrode jack 7 is arranged on the lid 5, work-auxiliary electrode jack 8, mercurous chloride electrode jack 9 and snorkel jack 10, indicator electrode 11, work-auxiliary electrode 12, mercurous chloride electrode 13 insert in each corresponding jack with the ground form respectively; Lid 6 is arranged on the titration cell 2, indicator electrode jack 14, mercurous chloride electrode jack 15, snorkel jack 16, working electrode jack 17, auxiliary electrode chamber jack 18 are arranged on the lid 6, indicator electrode 19, mercurous chloride electrode 13, auxiliary electrode chamber 21 insert in each corresponding jack with the ground form respectively, working electrode 20 adopts the form of falling the ground to insert in working electrode jack 17, the indicator electrode jack 14 double fluid guidance ports of doing, on gas, the fluid catheter 3 T-valve 22 is arranged, T-valve 23 is arranged on the inert gas conduit, and the two forms the loop.
Work-auxiliary electrode 12 is made of working electrode 24, auxiliary electrode 25, and working electrode 24 is pure platinum filament, fires in glass, becomes one with auxiliary electrode 25.
The using method of electrolytic cell described in the utility model:
Sample is assembled into the electrolytic cell system after putting into titration cell 2 dissolvings, processing again.Take off the mercurous chloride electrode 13 in preelectrolysis pond, top 1, insert mercurous chloride electrode again after the adding catholyte solution, add anolyte to the auxiliary electrode chamber.Behind the mercurous chloride electrode jack 15 usefulness stopper jam-packs on the titration cell lid of bottom, feeding nitrogen is removed the air (this moment, stop,threeway 22,23 was " ┬ " type) in system and the solution, then electrolyte solution is carried out the preelectrolysis titration so that eliminate the influence of impurity in the blank electrolysis matter solution.After this, unclamp stopper rotary-piston 22 and be " ┤ " type, allow preelectrolysis pond, top solution flow in the titration cell of bottom, simultaneously anolyte is joined in the auxiliary electrode chamber 21, treat that catholyte floods the working electrode chamber and recovers piston 22 to original position, and mercurous chloride electrode 13 from top take off be installed to titration cell 15 in.Add solution again in the pre-titration cell in top.Connect instrument and can carry out the micrometric measurement experiment.
Claims (5)
1, a kind of Coulometric titration pool, it is characterized in that it is made up of preelectrolysis pond and titration cell, the preelectrolysis pond is last son with cover, the bottom is the container of funnel type, on its lid indication is arranged, the reference electrode jack, work an auxiliary electrode jack and snorkel jack, titration cell is a beaker with a lid, on its lid indicator electrode is arranged, the reference electrode jack, work, auxiliary electrode jack and snorkel jack, the funnel type bottom in preelectrolysis pond is by being attached thereto logical gas, fluid catheter and titration cell are connected, the snorkel jack in preelectrolysis pond is connected with the snorkel jack of titration cell by the inert gas conduit, the inert gas conduit again with above-mentioned gas, fluid catheter forms the loop.
2,, it is characterized in that the equal seal arrangement of each electrode jack on said lid and pond, preelectrolysis pond body, titration cell pond body and the lid as the said Coulometric titration pool of claim 1.
3, as claim 1 and 2 said Coulometric titration pools, it is characterized in that said preelectrolysis pond, titration cell make by glass, between its lid and pond, preelectrolysis pond body, the titration cell pond body, each jack on the lid is that ground cooperates.
4,, it is characterized in that working electrode adopts the insertion of falling the ground in the said titration cell as the said Coulometric titration pool of claim 1.
5,, it is characterized in that auxiliary electrode and working electrode are connected as a single entity becomes work-auxiliary electrode in the said preelectrolysis pond as the said Coulometric titration pool of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201607 CN2090060U (en) | 1991-01-25 | 1991-01-25 | Precision coulomb burette electric tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201607 CN2090060U (en) | 1991-01-25 | 1991-01-25 | Precision coulomb burette electric tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2090060U true CN2090060U (en) | 1991-12-04 |
Family
ID=4912327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201607 Withdrawn CN2090060U (en) | 1991-01-25 | 1991-01-25 | Precision coulomb burette electric tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2090060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419945A (en) * | 2013-08-28 | 2015-03-18 | 中国科学院青岛生物能源与过程研究所 | Method and device for preparing hydrogen by electrolyzing ammonia |
| WO2021064662A1 (en) * | 2019-10-04 | 2021-04-08 | Breton S.P.A. | Method and plant for activating catalysts |
-
1991
- 1991-01-25 CN CN 91201607 patent/CN2090060U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419945A (en) * | 2013-08-28 | 2015-03-18 | 中国科学院青岛生物能源与过程研究所 | Method and device for preparing hydrogen by electrolyzing ammonia |
| WO2021064662A1 (en) * | 2019-10-04 | 2021-04-08 | Breton S.P.A. | Method and plant for activating catalysts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |