Hydrogen Fluoride

Its high boiling point compared to other hydrogen halides is attributable to the formation of supramolecular assembles that are held together by hydrogen bonds. 

 

Hydrogen fluoride is also miscible with water in all proportions, with the aqueous solution known as hydrofluoric acid. This acid powerfully attacks glass quartz and metals except lead, silver, gold and platinum. 

 

Polyethylene or polypropylene containers are normally used to store it, or lead and iron vessels for highly concentrated hydrofluoric acid.

 

Vapour Pressure Table 

 

T	K	273	283	293	303	313	323	333
	℃	0	10	20	30	40	50	60
p	bar	0,48	0,72	1,08	1,47	2,06	2,74	3,72
p fl.	kg/l	1,00	0,99	0,97	0,95	0,93	0,91	0,89

Industrial hydrogen fluoride is sourced from calcium fluoride and sulphuric acid with calcium sulphate formed as a byproduct. 

 

What are its applications?

Considered one of the most important fluorine compounds, hydrogen fluoride is also used industrially to manufacture chlorofluorocarbons, fluorocarbons and fluorinated surfactants plus as a catalyst in isomerisations, condensations and polymerisations. 

 

In laboratories, hydrogen fluoride is used as a solvent and for fluorination. Hydrofluoric acid is the starting point for the manufacture of inorganic fluorides including sodium fluoride and uranium hexafluoride. The acid is also used as an etchant in the glass and metal industries and for fettling metal castings.

If you have any questions about Hydrogen Fluoride, please do not hesitate to contact CRR Limited. We have been serving the specialist gases and chemicals industry since 1997.

 

Since we began trading, CRR has represented Gerling Holz in the UK and Ireland, with a great emphasis on reliability and delivering the highest level of customer service.