Hydrofluoric acid facts for kids
Quick facts for kids Hydrofluoric acid |
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| Other names | fluoric acid; fluorhydric acid |
| Identifiers | |
| CAS number | |
| EC number | 231-634-8 |
| RTECS number | MW7875000 |
| SMILES | F |
| Properties | |
| Molecular formula | |
| Molar mass | 0 g mol-1 |
| Appearance | Colorless solution |
| Density | 1.15 g/mL (for 48% soln.) |
| Melting point | |
| Boiling point | |
| Miscible. | |
| Acidity (pKa) | 3.15 |
| Hazards | |
| MSDS | duPont MSDS |
| EU classification | Very toxic (T+) Corrosive (C) |
| EU Index | 009-003-00-1 |
| NFPA 704 |
0
4
2
COR
|
| R-phrases | R26/27/28, R35 |
| S-phrases | (S1/2), S7/9, S26, S36/37, S45 |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Hydrochloric acid Hydrobromic acid Hydroiodic acid |
| Related compounds | Hydrogen fluoride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Hydrofluoric acid (HF) is a strong chemical that is a solution of hydrogen fluoride mixed in water. Its chemical formula is HF. Even though it is called a "weak" acid, it is very dangerous. It can eat through many materials, including glass.
Contents
What is Hydrofluoric Acid?
Hydrofluoric acid is a clear, colorless liquid. It is made by mixing hydrogen fluoride gas with water. This acid is known for being extremely corrosive. This means it can cause severe damage to many substances it touches.
How is it Made?
Hydrofluoric acid is created by a chemical reaction. It is made when a mineral called fluorite reacts with sulfuric acid. This process helps to produce the strong acid we know as HF.
What is it Used For?
Hydrofluoric acid has several important uses in different industries.
- Making other chemicals: It is used to create many other chemicals that contain fluorine. These include substances like Teflon, which is the non-stick coating on frying pans. It also helps make freon, a cooling agent used in air conditioners.
- Cleaning metals: This acid is also used to clean metal surfaces. It can remove rust and other unwanted materials from metals.
- Petroleum processing: It plays a role in the processing of petroleum, which is used to make gasoline and other fuels.
Why is it Dangerous?
Hydrofluoric acid is very toxic and dangerous. Even small amounts can cause serious harm.
- Corrosive nature: It can dissolve many materials, including glass. This shows how powerful and destructive it is.
- Effect on the body: If hydrofluoric acid gets on your skin, it can be extremely harmful. It reacts with calcium ions in your body. This reaction stops your body from using calcium properly. This can lead to severe health problems and can even be deadly.
- Medical attention: If anyone comes into contact with hydrofluoric acid, they need immediate medical help. Do not delay seeking professional medical care.
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See also
In Spanish: Ácido fluorhídrico para niños
