(n.) The act or process of acidifying, or changing into an acid.

acetification acidification acidulation alkalization boiling bubbliness bubbling catalysis chemicalization ebullience ebulliency ebullition effervescence effervescency electrolysis ferment fermentation fizz fizzle foaming frothiness frothing hydrogenation isomerism metamerism metamerization nitration oxidation oxidization phosphatization polymerism polymerization position isomerism reduction saturization sparkle spumescence working