Piranha solution preparation
Piranha solution is one of the most commonly used laboratory glass cleaner. Its strong oxidizing agent and removes most organic matter. However, it should be remembered that due to its…
Reagents
Aqua regia preparation
Aqua regia (other names: regal water, king's water) is a mixture of hydrochloric acid (HCl) and nitric acid (HNO3) in proportions of 3:1 (volume ratio). This liquid has orange color…