Hydrofluoric Acid, an inorganic acid with the chemical formula HF, is a colorless transparent fuming liquid with strong pungent odor. It has extremely strong corrosiveness and can react with various metals and oxides, easily soluble in water. It is mainly used in metallurgical purification, electronic etching, organic synthesis and derusting cleaning industry.
| Chemical Name | Hydrofluoric Acid |
| Chemical Formula | HF |
| CAS | 7664-39-3 |
| Appearance | Colorless transparent fuming liquid |
| Melting point | -83.3℃ |
| Boiling point | 112.2℃ |
| Density（ρ20）, g/cm³ | 1.15 |
| Molecular Weight | 20.01 |
| Solubility | Easily soluble in water and ethanol, slightly soluble in diethyl ether |
Primarily used for glass etching, metal pickling and derusting, electronic semiconductor cleaning, fluoride preparation and oilfield acidizing treatment.
Store in a cool, ventilated special anti-corrosion warehouse. Keep away from ignition sources and heat sources, avoid contact with alkaline substances. Store in sealed special plastic containers. Store separately from oxidizing agents, acids and food-grade chemicals, equipped with special anti-corrosion firefighting equipment and emergency leakage protection devices.
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