The situation: I want to mix Aqua Regia. I have hydrochloric acid,
HCl, at 23% and nitric acid, HNO3, at 53%, ie. both at
My problem: Anybody can explain to me the math to mix my own AR? I
guess there are adjustments to be made for the dillution percentages
of the acids!?
Oppi Untracht say the “usual” AR is
HCl : 3 parts by volume
HNO3 : 3 parts by volume
He further notes that AR for 14 - 18 kt gold is
HNO3 : 49 parts by volume
HCl : 1 part by volume
Distilled water : 12.5 parts by volume
I am looking to understand how to convert these "parts by volume"
recipes into volumetric recipes that take the dilution, or grades,
of the acids into consideration.
Thanks a ton in advance,