Acid-Base Chemistry of White Wine: Analytical Characterisation and Chemical Modelling

<table>Alkalimetric titration curve (<svg height="11.1" id="M58" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 43.049999 11.1" width="43.049999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.1)">
<g transform="translate(72,-63.12)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑣</tspan>
<tspan style="font-size: 12.50px; " x="9.7898493" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.830238" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="28.081738" y="0">5</tspan>
</text>
</g>
</g>
</svg> mL) for natural (○) and synthetic (<span style="font-family:monospace"><i>▵</i></span>) E08 at <svg height="11.1" id="M59" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 43.737499 11.1" width="43.737499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.1)">
<g transform="translate(72,-63.12)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
<tspan style="font-size: 12.50px; " x="10.339981" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.380369" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="28.63187" y="0">5</tspan>
</text>
</g>
</g>
</svg>°C. Titrant: standardized KOH 1.00 M. Natural E08: <svg height="14.725" id="M60" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 76.324997 14.725" width="76.324997" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.725)">
<g transform="translate(72,-60.22)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐶</tspan>
</text>
<text transform="matrix(1,0,0,-1,-63.56,60.27)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝐻</tspan>
</text>
<text transform="matrix(1,0,0,-1,-51.16,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">9</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">6</tspan>
<tspan style="font-size: 12.50px; " x="24.530886" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="27.656635" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="33.908134" y="0">0</tspan>
</text>
</g>
</g>
</svg> mM, pH = 3.05. Synthetic E08: <svg height="14.7875" id="M61" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 76.324997 14.7875" width="76.324997" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.7875)">
<g transform="translate(72,-60.17)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐶</tspan>
</text>
<text transform="matrix(1,0,0,-1,-63.56,60.22)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝐻</tspan>
</text>
<text transform="matrix(1,0,0,-1,-51.16,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">9</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="24.530886" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="27.656635" y="0">7</tspan>
<tspan style="font-size: 12.50px; " x="33.908134" y="0">6</tspan>
</text>
</g>
</g>
</svg> mM, pH = 3.03.</table>

The Scientific World Journal

fig3

Figure 3

Figure 3: Acid-Base Chemistry of White Wine: Analytical Characterisation and Chemical Modelling 