Two layers of non-mixing liquid and electrodes

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Discussion Overview

The discussion revolves around an imagined experiment involving two layers of non-mixing liquids, specifically water and kerosene, with the introduction of electrodes and an electrolyte. Participants explore the behavior of ions in this setup, particularly whether ions from the water can migrate to the kerosene layer under various conditions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant describes a scenario with water and kerosene, questioning if ions will be attracted to electrodes immersed in kerosene.
  • Another participant suggests that the effect may be negligible at low voltages, indicating uncertainty about the measurable impact.
  • A subsequent post considers the implications of applying a sufficient voltage and questions whether kerosene, being an insulator, would undergo dielectric breakdown.
  • Further questions are raised about the behavior of ions during dielectric breakdown, including whether they would travel from water to the surface or exit into the air during an arc or corona discharge.
  • One participant emphasizes that kerosene is merely an example and reiterates the main inquiry about ion movement and potential secondary phenomena.

Areas of Agreement / Disagreement

Participants express differing views on the conditions under which ions might migrate from water to kerosene, with no consensus reached regarding the effects of voltage or the behavior of ions in this context.

Contextual Notes

The discussion includes assumptions about the properties of kerosene as an insulator and the effects of voltage on ion movement, which remain unresolved. The implications of dielectric breakdown and discharge phenomena are also not fully explored.

pranj5
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I am siting an imaginary experiment here. In a glass vessel, there are two types of non-mixing liquids say water and kerosene. It can be easily understood that the kerosene will form a layer above water in such a case. Now, some common salt or other electrolyte has been added to the water and two electrodes (one positive and one negative) has been immersed in the kerosene. Do the ions will be attracted towards the electrodes and go from water to the kerosene?
 
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Depends on the applied voltage, but as long as we are talking about few volts I doubt there will be any measurable effect.
 
Consider the voltage to be sufficient.
 
Kerosene is an insulator. Will it undergo dielectric breakdown?

If dielectric breakdown (arc or spark discharge) goes through air or a dielectric immiscible liquid to surface of saltwater, do ions travel from water to the surface? Do they exit surface of water into air of the arc?

If corona discharge arrives at flat surface of water, will ions exit water surface into air?
 
Good questions! Though kerosene is just an example here and that can be replaced by other suitable liquids. Whatsoever, the main point is whether the ions will travel from water to secondary liquid or not. And if yes, whether that could bring other phenomenons into action or not.
 

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