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netralizing alodine solution

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sarg314(at)comcast.net
Guest

Posted: Fri Aug 15, 2008 7:05 pm Post subject: netralizing alodine solution

I've been told there is a way to neutralize used alodine solution so it 

is safe to dispose of.  (It has hexavalent chromium in it as do some 

primers - strontium chromate, I think - which is a carcinogen.)  The 

process involves adding sulphuric acide and something else.  Does any 

one know the details of this process?

--

Tom S., RV-6A

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Vanremog(at)aol.com
Guest

Posted: Fri Aug 15, 2008 8:56 pm Post subject: netralizing alodine solution

In a message dated 8/15/2008 8:06:04 P.M. Pacific Daylight Time,  sarg314(at)comcast.net writes:

  	  Quote: 	
		  I've    been told there is a way to neutralize used alodine solution so it 

is safe    to dispose of.  (It has hexavalent chromium in it  	


 

 Actually the newer MIL-C-5541 Type II chem film solutions meet RoHS  requirements by not containing hexavalent chromium.   

 N1GV (RV-6A, Flying 895hrs, O-360-A1A, C/S, Silicon  Valley) 





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