How to reduce 67% Nitric

[jeneje]

Hello all,

What I need to do is reduce 67% nitric to say 10% for some tests I need to do. Using distrilled water what would be the amount of water to use per 100ml of nitric.
Thanks

 

[FrugalEE]

Start with 570ml of water and add 100ml of 67% acid. You then should have 67ml of pure acid and 570 + 33ml = 603ml of water and total solution of 670ml. There may be a tiny error in this and some things mix where 1ml + 1ml equal less than 2 ml, but I don't see that happening here to a significant amount.

 

[jeneje]

Thanks Frugal