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E-mail
18910695625@163.com
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Phone
18834803908
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Address
No. 13, Su Huo Community, Li Qiao, Shunyi, Beijing 120
Beijing Yidian Technology Co., Ltd
18910695625@163.com
18834803908
No. 13, Su Huo Community, Li Qiao, Shunyi, Beijing 120
The cleaning core of the three mouth H-type electrolytic cell isRemove inorganic salt, organic matter, and metal ion pollution to prevent cross interferenceThe emphasis of different cleaning scenarios varies. To facilitate your quick grasp, I have summarized the key points in the following table:
| Application scenarios | core objective | Suggestions for cleaning intensity | Key steps/solution selection |
|---|---|---|---|
| After routine experiments | Remove the basic electrolyte to prevent residual dryness | Standard flushing | Immediately rinse with deionized water multiple times until the conductivity of the rinsing solution approaches that of ultrapure water. |
| Before the experiment/high-precision experiment | Remove trace amounts of organic matter and metal ions to achieve ultra-high cleanliness | Deep cleaning | Commonly usedacid leaching(such as 5% dilute nitric acid or concentrated sulfuric acid) combinedUltrasonic cleaning. |
| Replace the experimental system | Remove the residue from the previous reaction to prevent cross contamination | Targeted deep cleaning | Select cleaning agent based on the previous round of pollutants: •Inorganic salts/metal oxidesUse dilute nitric acid or dilute hydrochloric acid. •organic pollutantsUse solvents such as ethanol and acetone. |
Regardless of which plan is adopted, it should be followed“Disassembly, cleaning, rinsing, drying, and inspection”Standard process:
Safe disassembly and pretreatmentTurn off the power and wait for the electrolytic cell to cool to room temperature before carefully disassembling all components such as electrodes and salt bridges. Dispose of waste liquid properly according to laboratory regulations.
Selection method and cleaningSelect the appropriate cleaning method and cleaning agent according to the table above.
rinseThis isThe most crucial stepAfter any chemical cleaning, it must be usedUltra pure water (18.2 M Ω· cm)Rinse repeatedly and extensively, at least 8 times or more, to ensure that there is no residual cleaning agent.
dryAfter rinsing, use cleannitrogen flowBlow dry or place in a clean and dust-free areaInvert and air dry naturally.Avoid using an oven to bake at high temperaturesTo prevent the glass from generating stress or damaging components.
Inspection and verificationAfter cleaning, it can be visually inspected. For experiments with higher requirements (such as ORR), it can be usedPolycrystalline platinum disk electrodeVerify cleanliness through electrochemical activity.
safety assuranceWear protective equipment such as goggles and gloves throughout the entire process.Be sure to operate in a fume hood when using concentrated acid.
Disabled tools：ProhibitUsing metal brushes, hard brushes, and other grinding tools to clean the inner walls of glass, even minor scratches can become a source of pollution.
Wash separatelyThe cleaning methods for the glass body, electrodes (especially platinum, glassy carbon, etc.), and ion exchange membranes (such as Nafion membranes) of the electrolytic cell are different and should be treated separately.The cleaning of membrane materials should follow the manufacturer's instructions.
Avoid mixingDo not mix acid and alkali directly in the pool for cleaning to prevent violent exothermic reactions.
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