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Device for determining migration number of hydrogen ions (H<+>) through interface method and method for determining migration number of H<+>

An ion migration number and interface technology, which is applied to measuring devices, parts and instruments of particle separator tubes, etc., can solve problems such as affecting the test speed and work efficiency, affecting the accuracy of test results, and troublesome reading current data. Achieve the effect of improving test speed and work efficiency, reasonable test method, and convenient reading of voltage data

Inactive Publication Date: 2012-09-12
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inability of the traditional instruments to maintain a constant temperature, the error of the test results is large, and the scale ammeter with pointer deflection makes reading the current data not only troublesome, but also not accurate enough. The waste generated after the original cadmium electrode experiment seriously endangers the environment. This series of problems has affected the The test speed and work efficiency also greatly affect the accuracy of the test results, and it is not good for the environment

Method used

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  • Device for determining migration number of hydrogen ions (H&lt;+&gt;) through interface method and method for determining migration number of H&lt;+&gt;
  • Device for determining migration number of hydrogen ions (H&lt;+&gt;) through interface method and method for determining migration number of H&lt;+&gt;
  • Device for determining migration number of hydrogen ions (H&lt;+&gt;) through interface method and method for determining migration number of H&lt;+&gt;

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see figure 2 , an interface method for the determination of H + The device of the ion transfer number comprises a transfer tube 16 storing the test solution 12, an indicator is added to the test solution 12, and the transfer tube 16 is fixed vertically by the instrument support. The transfer tube 16 is provided with a scale line 13, and the transfer tube 16 The upper end of 16 is vertically inserted into the cathode electrode 14, and the lower end of the migration tube 16 is vertically inserted into the anode electrode 7, the cathode electrode 14 is electrically connected to the negative pole of the DC stabilized voltage power supply 4, the anode electrode 7 is electrically connected to the positive pole of the DC stabilized voltage power supply 4, and the DC voltage The measuring instrument 1 and the power switch 5 form a series circuit with the cathode electrode 14 and the anode electrode 7. The anode electrode 7 and the cathode electrode 14 are fixedly assembled wit...

Embodiment 2

[0037] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0038] In this example, see image 3 , the structure of the above-mentioned constant temperature device 6 is: an outer sleeve 11 is placed on the transfer tube 16, and a circulating liquid medium 10 is injected into the outer sleeve 11, so that the circulating liquid medium 10 is filled with the gap cavity between the outer sleeve 11 and the transfer tube 16, The upper part of the outer casing 11 has a water outlet 22 that communicates with the water inlet 20 of the super constant temperature water bath 21, while the lower part of the outer casing 11 has a water inlet 23 that communicates with the water outlet 19 of the super constant temperature water bath 21, and the transfer pipe 16 passes through another The rubber stopper 8 is fixedly assembled with the outer sleeve 11. In this example, in image 3 Among them, the migration tube 16 is covered with a ...

Embodiment 3

[0041] The technical solutions of this embodiment are basically the same as those of the foregoing embodiments, except that:

[0042] In this embodiment, the anode electrode 7 is preferably a nickel electrode. The nickel electrode is vertically inserted into the rubber stopper 8 , and the rubber stopper 8 is directly inserted into the lower end of the transfer tube 16 , and the nickel electrode is immersed in the test solution 12 . When the test solution 12 is energized for a period of time, the nickel element on the anode electrode 7 loses electrons and becomes a divalent cation of nickel, and forms a metal salt solution 9 with anions in the solution, which turns orange under the action of the indicator, while in the solution The hydrogen ions of the hydrogen ion get electrons and become hydrogen gas, and it can be observed that gas escapes around the cathode electrode 14, so that the hydrogen ions continuously move upwards to obtain electrons, and the anode electrode 7 conti...

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Abstract

The invention discloses a device for determining the migration number of hydrogen ions (H<+>) through an interface method. The device comprises a migration tube in which a test solution is stored, wherein the upper end of the migration tube is vertically inserted into a cathode, and the lower end of the migration tube is vertically inserted into an anode; a direct current voltage measurer and a power switch are respectively connected in series with the cathode and the anode to form a series circuit; an air outlet hole is formed in a rubber plug at the upper end of the migration tube, and the cathode is inserted into the rubber plug; an inner cavity of the migration tube is communicated with the atmosphere through the air outlet hole; a constant-temperature device is arranged outside the migration tube to uniformize and stabilize the temperature of the test solution which is stored in the migration tube; and the direct current voltage measurer is connected in parallel with a BZ3 type standard resistor. The invention also discloses a method for determining the migration number of the H<+> through the interface method by using the device for determining the migration number of the H<+> through the interface method. The invention has the advantages of simple working principle and convenience for operation, test speed and working efficiency are improved, the accuracy of a test result is greatly improved, and environmental harm is reduced.

Description

Technical field [0001] The present invention involves a test H + The device of ion migration and the measurement H + The number of ion migration methods is used to determine the number of ion migration in the laboratory interface method. Background technique [0002] Ion migration refers to the respective conductivity of various ions during the conductivity. The migration of ions is the only ionic properties that can be experimentally measured. Many other ionic properties are obtained through it.The commonly used measurement methods include Hetov method, interface movement method, etc.Hetov method needs to determine the amount of the material moved out of the anode region or the anion of the anion and the amount of substances that occur in the electrode reaction, and then find the migration of ions, which is difficult to test.The interface movement method is to directly determine the interface movement rate between the two electrolyte solutions. Its device structure is simple, co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/26H01J49/02G01N27/62G01N27/622
Inventor 张小平张良苗刘旭刘亮
Owner SHANGHAI UNIV
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