Hydrofluoric Acid is an acid like no other. It is so potent that contact with it may not even be noticed until long after serious damage has been done. Even very strong acids, and mixtures of acids, like Aqua Forte and Aqua Regia, do not have the power to cause death and injury in the way that Hydrofluoric Acid can.
The Chemistry of Hydrofluoric Acid
Hydrofluoric Acid is the aqueous solution of Hydrogen Fluoride gas. It is manufactured from the reaction of the mineral Fluorspar (Calcium Fluoride) and Sulphuric Acid. It is technically a weak acid, as it has a low degree of free ions, but it is extremely reactive with almost all metals and their oxides.
It is used mainly in the production of Fluorocarbons and Aluminium, metal surface cleaning, and as an etchant for Silicon, Alumina, and glass. It cannot therefore be stored in glass containers.
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