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Author: Subject: 4N,3N,2N gallium
thereelstory
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[*] posted on 1-5-2010 at 18:51
4N,3N,2N gallium


on one website, it says these all are 99.99 pure. so my question, stupid as it may be, is:

if the N stands for NORMALTY, what is the difference if the purity is the same.

thanks in advaNCE.
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12AX7
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[*] posted on 1-5-2010 at 20:04


2N = 99%, 'N' = "nines". If it's actually 99.99%, they slipped up...is it cheaper?

If it were normality, I wonder what it would be diluted by! Gallium is 5.91 g/cm^3 and 69.723 g/mol,
http://www.google.com/search?q=5.91+g%2Fcm^3+%2F+69.723+g%2F...
84.7M. So whatever it's diluted by, 2 Normal would be about 2.5% (depending on how many bonds you count gallium's normality as).

Tim




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chemrox
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[*] posted on 21-5-2010 at 14:33


2N should be 99.99% purity and 3N should be 99.999%@12AX7; I can't get anything else out of it. Why didn't you link us to the page?



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Fleaker
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[*] posted on 21-5-2010 at 18:06


No. 2N is 99%, 3N5 is 99.95%, and 6N is 99.9999%.

People seem to have a gallium fixation these days :-0




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thereelstory
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[*] posted on 21-5-2010 at 18:24


thanks, todos.
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JohnWW
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[*] posted on 22-5-2010 at 01:42


What would the impurities in Ga metal be? Most likely Al, because most Ga produced is obtained as a by-product of the refining by alkaline dissolution of bauxite into pure alumina.
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