ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

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The absorption of hydrofluoric acid in aqueous solutions

M. Paučírová, K. Matiašovský, and M. Malinovský

Slovak Academy of Sciences, Bratislava

 

Abstract: The optimum conditions for the absorption of HF from the gaseous effluent during the electrolytic production of Al were studied. The compn. of the azeotropic mixt. HF + H2O at 25 ± 1° was detd. The value 36.60 ± 0.45 wt. % HF was detd. as av. of 20 measurements. The absorption of the gaseous HF at the concn. (1-3) × 102 mg. HF/m.3 air in 2% soln. of NaOH was studied. It was detd. that the optimum air flow is at 1.0-1.5 1./min. and the absorption of HF is practically 100%. The measurements were made in a polyethylene app.

Full paper in Portable Document Format: 196a456.pdf (in Slovak)

 

Chemical Papers 19 (6) 456–461 (1965)

Monday, December 09, 2024

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