On the utilization of aluminium and its alloys in the wine and brandy industry

Abstract

The corrosion tests of the aluminium alloys, 1S, 2S, 3S and 52S which have been used for the anti-corrosion materials, are made in the white dry wine, and their characteristics of anti-corrosion property in the wine are researched.The aluminium alloys are attacked by the white dry wine, but the reactions are very slow compaired with those in the brandy. 3S and 52S which showed good resistance to the attack of brandy are pronounced largely by the wine, and 1S and 2S which show poor resistance to the attack of brandy are not much affected.The total acidity in the wine seems almost unchanged notwithstanding the hours of dipping the alloy, but the wine increases its pH-value and grows worse in its flavor and taste and on this occasion the wine becomes muddily white (after about 40 days) and then becomes clear again (after about 90-120 days), but in some cases the colour of wine fades.We add that this research owes its expence to the Grant-in-aid of the Scholarship of the Institute of Light Metal Foundation.