What Non-Flammable, Conductive Chemicals Can Be Used in Liquid Form?

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Discussion Overview

The discussion focuses on identifying non-flammable, conductive chemicals that can be used in liquid form. Participants explore various options, including pure substances and solutions, while considering potential applications and safety concerns.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest using water with salts or strong acids/bases dissolved in it as a potential solution.
  • Others propose liquid metals such as mercury or gallium, noting their high conductivity and low viscosity.
  • One participant warns that using water with ionic compounds can lead to redox reactions, which may produce flammable hydrogen gas and degrade components.
  • Concerns are raised about the toxicity of mercury, which is banned in many retail products due to health risks.
  • A participant shares a resource for a liquid metal alloy of indium and gallium as an alternative option.

Areas of Agreement / Disagreement

Participants express a range of opinions on suitable chemicals, with some agreeing on the utility of liquid metals while others highlight safety and environmental concerns. The discussion remains unresolved regarding the best options and their implications.

Contextual Notes

There are limitations related to the safety and regulatory status of certain chemicals, such as mercury, and the potential for hazardous reactions when using ionic solutions.

paraskevi
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Hi, I am not a Chem student but I have a few questions.

I am looking for a non flammable chemical that is also conductive.Liquid form preferred!
Multiple suggestions appreciated...
 
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paraskevi said:
Hi, I am not a Chem student but I have a few questions.

I am looking for a non flammable chemical that is also conductive.Liquid form preferred!
Multiple suggestions appreciated...
What about water with salts or strong acids or strong bases dissolved in it?
Among pure substances: a liquid metal (Hg, Ga or any other metal which can be melted; in case, low melting point alloys) liquid HF, liquid ammonia.
 
What sort of application are you looking at? Water with an ionic or polar covalent compound dissociated in it it can cause redox reactions to occur (especially if you have non-inert metal electrodes). This can cause the creation of flammable hydrogen gas (with oxygen as an accelerant) and it can degrade components.

I agree with lightarrow that a liquid metal is handy. Mercury is used in some orientation switches because of its low viscosity and high conductivity.

This guy has a cheap indium and gallium liquid metal alloy if you are interested:
http://sci-toys.com/scitoys/scitoys/thermo/liquid_metal/liquid_metal.html
 
Last edited:
wil3 said:
.I agree with lightarrow that a liquid metal is handy. Mercury is used in some orientation switches because of its low viscosity and high conductivity.
In the USA, mercury is banned from most or all retail products due to the toxicity of methyl mercury.
Mercury can amalgamate other metals (e.g., silver, gold, copper) and corrode others (e.g., aluminum).
About 1950, I panned lots of mercury near abandoned mercury mines in California (mercury was used to make primer during WW II), and have given most of it away.
 

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