Jstuyfzand
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Quick question about Graphite rods
I just bought some graphite rods from Ebay (China) and while inspecting them I saw that they colored the plastic bag gray/black from the graphite.
Is this normal for graphite? I guess it is but in videos of people using these rods it looked less messy.
I dont see how I can plate something on this rod if the graphite can flake off like this....
Thanks, sorry if this is a silly question!
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ecos
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Can you provide a picture for this ?
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Jstuyfzand
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http://imgur.com/a/BeVQK
It seems like a very soft piece of pencil lead, like 6B or something.
I have never worked with these rods before so I dont really know what to expect.
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hissingnoise
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| Quote: | | It seems like a very soft piece of pencil lead, like 6B or something. |
Yeah! And so we call it graphite!
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Jstuyfzand
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I see, I never had pure graphite before so I thought It would be a little different from pencil lead, anyway, thread closed.
[Edited on 27-8-2016 by Jstuyfzand]
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careysub
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They add clay to graphite to make the harder pencil leads. The softest lead is pure graphite.
The ease with which the layers of graphite peel off it what makes graphite powder such a good dry lubricant.
When they built Chicago Pile-1 (CP-1), the world's first nuclear reactor, the men stacking the graphite blocks were black from the graphite that came
off on them.
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hissingnoise
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| Quote: | | I see, I never had pure graphite before. |
Sorry Jstuyfzand, I forgot that English isn't your first language.
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Jstuyfzand
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What does that have to do with this? 
Anyway, I feel stupid now, I guess I expected that graphite rods would be different than pencil leads, turns out, it is the same.
Please let me die from the inside in solitude now.
Anyway, lets move on, nothing to see here, tssk tssk!
[Edited on 27-8-2016 by Jstuyfzand]
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XeonTheMGPony
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I think that is a very kind compliment!
And we all make mistakes on what we think Vs reality, I take pleasure when I learn new things
So take pleasure you now know for sure you got graphite and learned some interesting points in its usage.
So don't feel stupid at all, the only stupid question is the one that wasn't asked!
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phlogiston
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One other thing to note about graphite if you are going to use it for electrodes is that they are sometimes impregnated with something to extend their
operating life. The graphite rods from batteries have been treated with something resembling paraffin, and I have treated graphite welding rods for
use in chlorate cells.
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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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Jstuyfzand
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Quote: Originally posted by phlogiston  | | One other thing to note about graphite if you are going to use it for electrodes is that they are sometimes impregnated with something to extend their
operating life. The graphite rods from batteries have been treated with something resembling paraffin, and I have treated graphite welding rods for
use in chlorate cells. |
they seem quite pure, it came from china sold as graphite rods, so I dont expect any impurities.
I am looking to plate them with MnO2 for a chlor alkali cell, problably going the sulphate route, and treating the surface with HCL before plating,
any advice/critique on that?
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ecos
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you are planning to use them for chlorate/perchlorate? if yes , it is better to plate them with PbO2
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Texium
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Thread Moved
27-11-2023 at 10:49 |
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