The strongest acid in the world is fluoroantimonic acid. It's a superacid, meaning it's stronger than 100% sulfuric acid. It's a mixture of hydrogen fluoride (HF) and antimony pentafluoride (SbF5) and is extremely corrosive.
Fluoroantimonic acid is a superacid that's formed by combining hydrogen fluoride and antimony pentafluoride. It has a Hammett acidity function (H0) of -31.3, which makes it a superacid, meaning it's stronger than 100% sulfuric acid.
However, "best" is subjective. Depending on the application, different acids might be more suitable. For example, in biological systems, acids like citric acid and acetic acid are important for various metabolic processes. In skin care, salicylic acid and lactic acid are popular for exfoliation and acne treatment.
The best acid would depend on the specific application and desired outcome.
