What is hydrofluoric acid used for in industry?
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What is hydrofluoric acid used for in industry?
Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (eg, glass etching, metal cleaning, electronics manufacturing). Hydrofluoric acid also may be found in home rust removers. Exposure usually is unintentional and often is due to inadequate use of protective measures.
What products have hydrofluoric acid in them?
Hydrofluoric acid is used in a variety of over-the-counter products such as toilet bowl cleaners, concrete cleaners, and metal polishes.
What is hydrofluoric acid manufacture?
Anhydrous hydrogen fluoride (HF) is an inorganic, corrosive compound with many industrial and commercial uses. It is manufactured by heating purified fluorspar (calcium fluoride) with concentrated sulfuric acid to produce the gas, which is then condensed by cooling or dissolving in water.
Is HF organic or inorganic?
Some common examples of oxygenless acids include hydrochloric acid (HCL) and hydrofluoric acid (HF) which are monobasic; and hydrogen sulphide (H2S) which is a dibasic organic acid….Inorganic Acid:
| Organic Acid | Inorganic Acid |
|---|---|
| It is soluble in organic solvents. | It is insoluble in organic solvents. |
What is the difference between hydrochloric acid and hydrofluoric acid?
The key difference between hydrofluoric acid and hydrochloric acid is that the hydrofluoric acid is a weak acid whereas the hydrochloric acid is a strong acid. The hydrofluoric acid molecule has a fluoride ion whereas the hydrochloric acid molecule has a chloride ion.
What is the byproduct in the production of HF from fluorspar?
The acid grade fluorspar is then transported to the hydrofluoric acid plants by ship, road, rail or barge. Here it reacts with sulphuric acid to form hydrogen fluoride gas. This is either collected and stored for use as a liquefied gas, or it can be diluted with water to produce aqueous solutions of hydrofluoric acid.
Where is hydrofluoric acid produced?
Hydrofluoric acid was first prepared in 1771, by Carl Wilhelm Scheele. It is now mainly produced by treatment of the mineral fluorite, CaF2, with concentrated sulfuric acid at approximately 265 °C. The acid is also a by-product of the production of phosphoric acid from apatite and fluoroapatite.