On the difference between hydrofluoric acid
There is a strange thing in the world, called hydrofluoric acid, which is very different from ordinary acid.

Hydrofluoric acid, like clear water, is stronger than tigers and leopards. Ordinary acid, when exposed to objects, often causes corrosion, but hydrofluoric acid is not only etched on the surface, but also deeper into the texture. Its etched glass is like a hot knife cutting fat, and the glass is crystal clear. It is known for its hardness and corrosion resistance. However, when exposed to hydrofluoric acid, it turns into powder in an instant. This property allows craftsmen to carve glass into all kinds of ingenious things, which are not accessible to other acids.

And the poison of hydrofluoric acid is also feared by the world. When it touches the skin, it may be painless at first, but the poison has already invaded, and the pain gradually becomes unbearable, penetrating deep into the bone marrow, even more than burning. If the treatment is not enough, the wound will fester and endanger life.

Although hydrofluoric acid is so dangerous, it can be used well. In the metallurgical industry, it can help purify metals and remove impurities like finding things in the bag. In the field of chemical industry, it is an important agent for the synthesis of various delicate compounds.

Therefore, when viewing hydrofluoric acid, you should not only be afraid of its risks, but also observe its ability. If you are good at resisting it, you will be like a good horse, which can drive people and achieve all things; if you are not good at resisting it, you will be like a tiger, hurting people and things. The world should be in awe of all kinds of wonders, and use them wisely to obtain their benefits and avoid their harm.