Can dissolve fluorantimonic acid diamond

What is the strongest acid?

In chemistry, the strength of an acid is measured by its ability to donate a proton and thus the PH value to lower the water. The strongest acids are usually also the most corrosive.

What is acid

In chemistry, an acid is a substance that is able to give off hydrons (H + ions) to water. When an acid is poured into water, the ratio of the increases H + ionswhich lowers the pH of the solution and makes it acidic. The easier the acid releases protons, the stronger it is. Some acids are even so strong that they can destroy other molecules "to force", to take a hydron from them. This strength is measured by the acid constant Ka: the higher Ka, the stronger the acid - be careful, because this value depends not only on the acid in question, but also on the solvent and the temperature.

Carboranic acid, 100 billion times more acidic than water

According to this definition is the carboxylic acid H (CHB11Cl11) the strongest acid: this molecule, synthesized in 2004, is 100 billion times more acidic than water and a million times more reactive than concentrated sulfuric acid. This acid owes its properties to its molecular structure, in which the negative charges are grouped in the center under a layer of chlorine atoms, which makes the bonds with the protons particularly fragile.

Acid and corrosion: two properties that are generally related

The strongest acids are usually also the most corrosive, because once their hydron is removed from them, they become very reactive and easily break the bonds inside other molecules. At this point the fluoro is antimonic acid HF-SbF5 the strongest, able to protonate almost any material (glass, plastic, gold, air, water ...). It's so corrosive that it has to be kept in a Teflon bottle, the only material that can withstand it.

Carboranoic acid is an exception to the rule: on the contrary, it is remarkably stable because the negative structure created by the loss of the proton remains almost inert. This property makes it particularly interesting for commercial use, such as the production of Vitamins, which are acidified, the refining of oil or the production of heat-resistant polymers.

Originating author: Celine Deluzarche

This entry was published in Chemistry, FAQ by Bernard Miletic. Permalink