CN2103144U - Electrolytic tank reference electrode for coulomb n. instrument - Google Patents
Electrolytic tank reference electrode for coulomb n. instrument Download PDFInfo
- Publication number
- CN2103144U CN2103144U CN 91225776 CN91225776U CN2103144U CN 2103144 U CN2103144 U CN 2103144U CN 91225776 CN91225776 CN 91225776 CN 91225776 U CN91225776 U CN 91225776U CN 2103144 U CN2103144 U CN 2103144U
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- lead
- coulomb
- utility
- model
- platina
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Abstract
The utility model discloses an electrolytic cell reference electrode for coulomb azotometer for measuring the micro nitrogen content in petroleum product, mostly composed by that a lead plated platina spun gold is immersed in saturated lead sulfate solution. Because lead plated layers are of uneven thickness, and easily drop out, the unsteadiness of electrode potential is easily caused, which influences experimental result. In the utility model, a pure lead rod is used to take the place of the lead plated electrode of the platina spun gold, the defect of lead plated battery is overcome, which makes experimental result accurate and reliable, and the utility model saves the consumption of the noble metal platina gold, with complicated manual lead plating operation avoided.
Description
The utility model belongs to the chemical analysis instrument, specifically is the trace nitrogen content that is used for analyzing petroleum products.
The present domestic coulomb contrast electrode of azotometer electrolytic cell that produces mostly constitutes by immersing saturated lead sulfate solution after the platinum wire lead plating, a coulomb azotometer electrolytic cell that resembles U.S. road Germania company product abroad also is the contrast electrode that adopts this structure, existing this contrast electrode is because the lead plating became uneven, and come off easily, cause the electrode potential shakiness easily, make instrumental sensitivity not enough, be prone to unstability of base line in the operation, the peak shape asymmetry, because insufficient sensitivity, nitrogen content to low concentration is difficult for measuring, because the lead plating layer on the platinum wire comes off easily, need often carry out artificial lead plating.Use existing platinum wire lead plating contrast electrode, operating conditions requires harsh, and hydrogen purity requires up to 99.999% in the test, and test must be can use behind the deionized water second distillation with distilled water and electrolyte quota water.
The purpose of this utility model is to overcome its shortcoming by the improvement to existing coulomb of azotometer electrolytic cell contrast electrode.
The utility model is to realize by the saturated lead sulfate solution that high-purity lead rod that handle is connected with the metal connection post immerses in the reference electrolytic cell, in addition reference electrolytic cell upper end is sealed with the plastics king, and the metal connection post passes plastics king pad and closely connects with screw thread.Fig. 1 is the synoptic diagram of the utility model contrast electrode, and wherein 1 is plastics king pad, and 2 is the metal connection post, and 3 is pure lead rod, and 4 is the reference cell wall, and 5 is saturated lead sulfate solution.
The utility model contrast electrode replaces original platinum wire lead plating with pure lead rod, solved the thin uneven and problem that easily comes off of lead plating bed thickness, reference electrolytic cell upper end is with the sealing of plastics king pad in addition, can make saturated lead sulfate solution face keep steady state (SS), above-mentioned improvement can make in the operation electrode potential stable, thereby make test findings more accurately and reliably, replace platinum wire lead plating electrode with lead rod in addition, do not need manually lead plating repeatedly, promptly saved the labour, saved the consumption of precious metal platinum again, used the utility model contrast electrode, the severity of Test Condition Requirements has been reduced.
With nitrogen content is that the standard oil sample of 0.95ppm is nitrogen content result such as the following table that records on the DKD--201 coulomb azotometer of platinum wire lead plating and pure lead rod at contrast electrode respectively:
Find out that by the above result of recording to the sample of low nitrogen content, it is accurate not only to record the result with pure lead rod contrast electrode, and records the result than primary electrode yield height, and instrument sensitivity height is described.
Claims (2)
1, a kind of coulomb of azotometer electrolytic cell contrast electrode is characterized in that it is to be made of the saturated lead sulfate solution that the pure lead rod that is connected with the metal connection post immerses in the reference cell.
2, according to described coulomb of azotometer electrolytic cell of claim 1 contrast electrode, it is characterized in that described reference electrolytic cell upper end with the sealing of plastics king pad, the metal connection post passes plastics king pad and closely connects with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225776 CN2103144U (en) | 1991-09-25 | 1991-09-25 | Electrolytic tank reference electrode for coulomb n. instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225776 CN2103144U (en) | 1991-09-25 | 1991-09-25 | Electrolytic tank reference electrode for coulomb n. instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103144U true CN2103144U (en) | 1992-04-29 |
Family
ID=4931996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91225776 Granted CN2103144U (en) | 1991-09-25 | 1991-09-25 | Electrolytic tank reference electrode for coulomb n. instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332487A (en) * | 2022-10-13 | 2022-11-11 | 千能未来(武汉)能源科技有限公司 | Reference electrode of lead-acid battery, activation method and application |
-
1991
- 1991-09-25 CN CN 91225776 patent/CN2103144U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332487A (en) * | 2022-10-13 | 2022-11-11 | 千能未来(武汉)能源科技有限公司 | Reference electrode of lead-acid battery, activation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |