How to make "Aqua Regia" in the lab conditions? Which lab equipment must be used?
Typically, 1 part of concentrated nitric acid is added to 3 parts of concentrated hydrochloric acid.
- Personal protection (goggles, gloves, lab coat) is vital.
- Prepare and use it under a well-vented fumehood only - hands inside the fumehood, head outside!
The comment of Crystal Lettuce is very important and points to a crucial aspect:
Aqua regia isn't a mixture to keep bottled on the shelf: it has to be prepared and used immediately!