Acetic Acid and Sodium Hydroxide Neutralization

概要

Acetic acid (vinegar) reacts with sodium hydroxide to form sodium acetate and water. Because acetic acid is a weak acid (Ka = 1.8 × 10⁻⁵), the resulting solution is slightly basic at the equivalence point due to acetate ion hydrolysis. The heat of neutralization is slightly less than for strong acid-strong base pairs.

参加者

日常の例

Sodium acetate is used in hand warmers and hot ice demonstrations, where a supersaturated solution crystallizes exothermically.

産業上の重要性

酢酸ナトリウムは食品保存料(E262)、繊維産業、そして生物学的栄養塩除去を行う排水処理における炭素源として使用されています。