What Is the Most Corrosive Acid?


Quick Answer

As of 2015, the world's most corrosive acid is fluoroantimonic acid, according to About.com. This acid is the product of mixing hydrogen fluoride and antimony pentafluoride in equal ratios. Fluoroantimonic is 20 quintillion times stronger than sulfuric acid.

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Full Answer

The hydrogen ion attaches itself to the fluorine because of a very weak dipolar bond. This weak bond accounts for the high level of acidity. The properties of fluoroantimonic acid include being explosive when coming into contact with water, evolving highly toxic vapors and dissolving glass. In addition, it is used in chemical engineering and organic chemistry. Furthermore, the acid can separate different chemicals such as methane and neopentane.

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