HIO₄
* Fluoroantimonic acid, HSbF₆
* Magic acid, FSO₃HSbF₅
* Carborane superacid, H(CHB₁₁Cl₁₁)
* Fluorosulfuric acid, FSO₃H
* Triflic acid, CF₃SO₃H

; Strong bases
* Lithium hydroxide,