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Nickel Corrosion? Kill Coil copper coloured - Page 4

post #31 of 56
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DirectOverkill - He had greenish deposits on his whereas mine were copper coloured.

mam72 - I've scrubbed it off with a toothbrush. I never use vinegar to clean stuff but I used to use lemon juice to remove oxidation from the blocks although I don't bother now and just leave it on.
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post #32 of 56
So it is the colour that does not fit your purpose
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post #33 of 56
OK guys... what doesnt make sense is the red deposits on the silver coil.

The red deposits should be on the copper parts or inside the radiator, not on the silver coil.

Im still lost in this matter, and im guessing it has to do with whats inside the .1% thats allowing red deposits to form on it.

Quote:
Originally Posted by DirectOverkill View Post
Same situation with silver happend to this chap
http://www.overclock.net/water-cooli...coil-gunk.html
Yeah that guy also has something funky growing on his silver...

And its not the nickle... he says the nickle is fine... its a hard calcium type flake deposit on the block.

so im really lost at all these problems, and they started reciently.
So i am gonna take a guess, and think it has something to do with the .1% in the silver coil, that was missed on the other sheets which didnt get tested.
Edited by NaeKuh - 6/17/11 at 4:33pm
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post #34 of 56
Given the questionable silver purity, those kill coils would have been a much more interesting thing for EK to test...instead of testing corrosion of their blocks that was more obvious.

There is a bunch of articles on "red plague" ie cuprous oxide, and black corrosion cupric oxide (CuO) from DOD and NASA, since they have been dealing with it for 40 years. Page 9 pic of red plague.

I agree, it is weird that havent seen it before though until now, which makes one wonder like you said about contaminants in silver. Either that or no one has put it in direct contact with copper before.

Need someone that works at a testing company posting on here...
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post #35 of 56
yeah but red plague happens when u plate silver over copper.
(i havent even seen it yet on bitspower true silver fittings yet)

If the coil is pure silver... there is no copper inside the coil... and i highly doubt u can have a coil be in contact with pure copper given the nature of how the coil is ...

Basically im asking.. who is dumb to put a coil inside a block and mess up the internal flow of it..

So thats why im confused.
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post #36 of 56
Bitspower 'True Silver' fittings as well as all Bitspower fittings (barbs/compressions/angle/t's,etc.), are made of brass, not copper.

Interestingly enough, Vincent does make the compression rings (for all his compression fittings) out of copper though. Not that it matters to this discussion, since they only contact the tubing and never the water in a loop.
Edited by MtnDew - 6/18/11 at 4:11am
post #37 of 56
Quote:
Originally Posted by NaeKuh View Post
and i highly doubt u can have a coil be in contact with pure copper given the nature of how the coil is ...
That is a good point, if it was red plague from banging inside res, even if copper high enough concentration in his metal res, you would only see few edges with it....the red coating on his coil is diffuse and nearly same throughout, makes more sense for a contaminant in silver.

Looking at contaminants, copper is often the highest level contaminant in "pure" silver. Sterling silver is 7.5% copper and is known to develop red, purple, black "firescale" (though from heating, but ? occurs under water).

Guess need to stick to IandH or Mayhems silver coils that are 99.999% silver and avoid the knock-offs that say 99.9, if turns out that copper level or other contaminants in 99.9 is enough to create that scale.
Edited by opt33 - 6/18/11 at 6:25am
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post #38 of 56
Cut the coil, check the color.
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post #39 of 56
Quote:
Originally Posted by tsm106 View Post
Cut the coil, check the color.
thats not the issue..

its whats mixed with the alloy in silver.

Thats why were

if it was US mint grade silver, i highly doubt u'd be seeing this.
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post #40 of 56
Quote:
Originally Posted by opt33 View Post
That is a good point, if it was red plague from banging inside res, even if copper high enough concentration in his metal res, you would only see few edges with it....the red coating on his coil is diffuse and nearly same throughout, makes more sense for a contaminant in silver.

Looking at contaminants, copper is often the highest level contaminant in "pure" silver. Sterling silver is 7.5% copper and is known to develop red, purple, black "firescale" (though from heating, but ? occurs under water).

Guess need to stick to IandH or Mayhems silver coils that are 99.999% silver and avoid the knock-offs that say 99.9, if turns out that copper level or other contaminants in 99.9 is enough to create that scale.
Wouldn't that make it so when the coil is wiped off, you would see areas that the copper has been separated from the silver? I have a generic silver coil I purchased from Jab-Tech and it doesn't have any signs of this. I admit that it might be a higher quality strip than what the OP has, but I wonder if perhaps it is because it is in contact with another metal in his reservoir. I don't personally own a Phobya reservoir, so I can't look to see if metal on metal contact occurs when placing a coil inside, but looking at a picture, it seems possible? (My coil is in an acetal reservoir, so there isn't any metal on metal contact.)

Quote:
Originally Posted by NaeKuh View Post
thats not the issue..

its whats mixed with the alloy in silver.

Thats why were

if it was US mint grade silver, i highly doubt u'd be seeing this.
NaeKuh, you seem pretty well-versed on this stuff based on your forum posts (as is Opt33 of course), would you agree that using DI water with silver having contact with a pourous surface such as the Phobya above could potentially cause the copper molecules to be transferred to the silver coil? I admit that I am still in my first year of chemistry, so I am not by any stretch of the imagination an expert on this. Just seems like a plausible explanation to me with my limited understanding in this subject.
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