[buffettpins]

I have used 36 degree nitric acid for years in a mixture for a metal treatment process...now my supplier can only sell me 68 degree nitric acid.  How can I get the proper amount to be equivalent to the 36 degree I used to use?  The strength is critical to the process.  Is there a way to figure this out?  Thanks.

[AWK]

I have used 36 degree nitric acid for years in a mixture for a metal treatment process...now my supplier can only sell me 68 degree nitric acid.  How can I get the proper amount to be equivalent to the 36 degree I used to use?  The strength is critical to the process.  Is there a way to figure this out?  Thanks.

Just dilute your acid with water (9/8 [m/m] or 4/5 [V/V]) = the first number concerns the concentrated acid