FIELD: chemistry.
SUBSTANCE: water and low-quality ethyl alcohol are separately exposed to ultrasound with frequency 20-25 kHz and then mixed. The mixture is filtered, purified and alcohol content of the vodka is adjusted to 40% and the vodka is then enriched with gold ions through exposure to ultrasound in the 20-25 kHz range using a gold plated waveguide-ferrule.
EFFECT: improving the quality of vodka by eliminating gold leaf, as well as fusel oils, isoamyl, amyl and isobutyl alcohols, which are present in vodka due to low-quality ethyl alcohol.
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