Had a brilliant thought for an experiment

I was reading up on pigments and discovered that ferrocyanide (prussian blue) is diamagnetic.

This got me to think of that mobius circuit I did for the open house and how to manipulate electromagnetic fields using pigment materials for applications on arbitrary substrates.

But before I go spinning my wheels on this, I’m wondering if anyone can point me in the right direction for resources namely for values, and/or calculating/measuring the magnetic properties of ferrocyanide and other pigment like materials?

mm… you could just start painting and put a magnet and some iron filings on the paper and see how well you can get the lines of magnetism to ‘stick’ to the paint…

Not really interested in it for attraction but for electromagnetic properties.Besides that thought crossed my mind hence the part in the question on measurement of fields.

What specific properties are you interested in?

_electro_magnetic :wink:

Albeit I suspect ferrocyanide even layered with other materials would not be a good conduit material but that’s the experiment.

My end goal is to experiment with pigments that are either semi-conductive, magnetic/diamagnetic, and electroluminate to exploit those properties for fun and profit, more fun than profit.

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https://youtu.be/BwKQ9Idq9FM?t=130 working version of the insperation

This sounds cool. Would you mind documenting your process and putting it up on a wiki or something? I might want to dive into this when I have some free time.

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Here are a couple of articles on the subject. You may also want to check the CRC handbook in Science to see if any conductivity information is listed. I am fairly certain that ferocyanides are not diamagnetic, so their conductivity will drive their electromagnetic properties.

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Of course!! Reminds me that I may need to use some of the chemistry tools. Does one need to take a class before they can use the glassware?

According to wikipedia (yeah I know not the best source): K4Fe(CN)6. [Fe(CN)6]4− is a diamagnetic.

Either Way thanks for the articles. I’ll be sure to skim through the CRC handbook tonight when I swing by.

Interesting. Well color me corrected! :smile:

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No, you could use them anytime. You would just need to thoroughly clean them when your done and properly dispose the waste. @ChadB any thoughts?

You can explore how good of a diamagnetic material it is and how that works with its geometry as a pigment by applying static fields and seeing what they do to iron filings.

It’s also about the simplest thing you can possibly try.

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We’re in the process of defining better rules and safety procedures…in the meantime make sure you have a plan for what you’re doing and how you’ll dispose of any waste safely and legally, clean up after yourself, and don’t do anything stupid.

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of course. I’ll even draft up the experiment procedure on the wiki first.

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did not think about that… thanks!

My carbon nanomaterial sense is tingling…not sure what one could do with a combination of these materials though. Google tells me they’ve been used to make the lowest detective level immunosensor to date for something to do with strokes. That sounds like fun and money.

Graphene oxide might be an interesting diamagnetic material to look into. If you’re interested in pcbs, i’m pretty sure the fastest, simplest, best method worthy of a DMS maker is going to be flash conversion of graphene oxide to graphene… most likely on the laser cutter… one very low laser level setting to flash convert the graphene oxide to conducting graphene paths and the other to punch holes into the substrate. Looking for a cheap source of the stuff to try this…

Will keep ferrocyanide and other diamagnetic colloidal suspensions in mind. print out the msds sheets for the msds book up front for your chemicals.

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