How to Safely Work with NaF and KF at 1000°C in a Poorly Equipped Lab?

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Discussion Overview

The discussion revolves around the safety and practical considerations of working with sodium fluoride (NaF) and potassium fluoride (KF) at high temperatures (1000°C) in a poorly equipped laboratory setting. Participants explore the risks associated with handling these materials, particularly in their molten state, and discuss potential containment options.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses concern about the toxicity of NaF and KF and seeks advice on safety measures in an inadequately equipped lab.
  • Another participant questions the rationale behind working with molten salts at such high temperatures and highlights the dangers of using improper containers, noting that glass would be unsuitable.
  • A participant shares their negative experience regarding lab safety standards at different institutions, indicating a lack of motivation to work under poor conditions.
  • There is a discussion about suitable materials for crucibles, with suggestions including inconel, Monel, Hastelloy, and alumina, while noting that platinum is too expensive for the application.
  • One participant mentions that their inconel crucible was destroyed, raising concerns about the durability of materials used for containment.

Areas of Agreement / Disagreement

Participants generally agree on the dangers of working with molten NaF and KF without proper equipment, but there is no consensus on the best containment material or the appropriateness of working under the current lab conditions.

Contextual Notes

Participants reference the need for proper safety measures and suitable materials for high-temperature applications, but specific assumptions about the lab's capabilities and safety protocols remain unresolved.

Oxygenne
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Hi!
I would like to ask if you have some experience how is to work with NaF and KF at 1000°C but in the lab not under fumecoboard.
I know that is toxic but I do not see at the moment how to protect myself since the lab is not well equipped
Thank you for your advice!
 
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Oxygenne said:
I would like to ask if you have some experience how is to work with NaF and KF at 1000°C but in the lab not under fumecoboard.

1000C? Surely you are working in the molten state. And why are you doing such a thing? Working with any liquid salt is very dangerous especially without the proper equipment and container. What may I ask are you using as a container? It will eat through glass...
 
I agree with you.
When I was PhD student in G****** people were paying much attention to such things but now, in A****** I cannot believe that is allowed to work in such bad conditions in a such prestigious school.
Personally I have no motivation to work and I feel very bad.

what do you mean by container?
 
I was wondering what you or the lab planned to use for a container to hold the molten fluorides...the crucible.
 
Cesium said:
I was wondering what you or the lab planned to use for a container to hold the molten fluorides...the crucible.

I use inconel. But it was destroyed.
 
lol and I was going to suggest Monel or Hastelloy

platinum would survive
 
surely but it is too expensive .
the dimensions are quite large

i am thinking to use alumina
 

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