Hydrofluoric acid (abbreviated as HF) is the aqueous solution of hydrogen fluoride gas. It is also known as fluoric acid, white bone acid, bone-dissolving water, drilling water, rust remover, and acid washing. At room temperature, it is a colorless, transparent to pale yellow smoking liquid with a pungent smell. Its specific gravity is 0.98, slightly lighter than water, and its boiling point is 19.4℃. It is highly volatile and emits white smoke when exposed to the air. Aqueous solutions containing less than 60% hydrogen fluoride are colorless, clear and fuming liquids. Industrial products are usually aqueous solutions with a HF content of 40% to 45%. It has a pungent smell, reacts with sulfur trioxide or chlorosulfonic acid to form fluorosulfonic acid, reacts with halogenated aromatic hydrocarbons, alcohols, alkenes and hydrocarbons to form fluorinated organic compounds, dissolves in water to form highly corrosive acids, which are medium-strength acids.
| Brand Name: |
Juming |
|
Model Number: |
Jm 7664-39-3 |
|
Place of Origin: |
China |
|
Product Name |
Hydrogen fluoride |
CAS |
7664-39-3 |
|
MF |
Hf |
MW |
20.01 |
|
EINECS |
231-634-8 |
form |
Liquid |
|
color |
Clear |
purity |
99% |
|
Minimum Order Quantity: |
1kg |
|
Price: |
negotiation |
|
Payment Terms: |
T/T or western Union |
|
Supply Ability: |
10000kg per month |
|
Delivery Time: |
10 working days after received your payment |
|
Packaging Details: |
Packaging can be customized according to customer requirements |
|
Melting point |
-35°C |
|
Boiling point |
105°C |
|
density |
1.15 g/mL at 25 °C(lit.) |
|
vapor density |
1.27 (vs air) |
|
vapor pressure |
25 mm Hg ( 20 °C) |
|
Fp |
112°C |
|
storage temp. |
Store at +5°C to +30°C. |
|
pka |
3.17(at 25℃) |
|
form |
Liquid |
|
Uses |
Hydrogen fluoride is the most important compound of fluorine. Anhydrous hydrogen fluoride is used in the production of most fluorine-containing chemicals. It is used in the production of refrigerants, herbicides, pharmaceuticals, high-octane gasoline, aluminum, plastics, electrical components, and fluorescent light bulbs. Aqueous hydrofluoric acid is used in stainless steel pickling, glass etching, metalcoatings, exotic metal extraction, and quartz purification(Hance et al. 1997). The most important use of hydrogen fluoride is in the production of fluorocarbon chemicals, including hydrofluorocarbons, hydrofluorochlorocarbons, and fluoropolymers; 60% of production is used for this purpose. Demand for hydrogen fluoride for fluorocarbons, broadly used as refrigerants, is increasing as a nonchlorinated alternative to ozone-depleting chlorofluorocarbons. (Production of fluorocarbons uses more hydrogen fluoride than production of chlorofluorocarbons.) The next most important uses of hydrogen fluoride are:chemical derivatives,18%; aluminum manufacturing,6%; stainless steel pickling,5%; petroleum alkylation catalysts, 4%; and uranium chemicals production,3%. Miscellaneous other uses include glassetching, herbicides, and rare metals(CMR 2002). Generally, the aluminum industry consumes 10-40 kg of fluoride per metric ton of aluminum produced. The AlF, used in aluminum reduction cells may be produced directly from acid-grade fluorspar or byproduct fluorosilicic acid, rather than from hydrogen fluoride. Anhydrous hydrogen fluoride is used as a catalyst in the petroleum alkylation, a process that increases the octane rating of petroleum. In uranium chemicals production, hydrogen fluoride is used to convert uranium oxide(yellow cake,U3O8) to UF4. before further fluorination to UF6. |
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