Nitric Acid and Potassium Hydroxide Neutralization
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HNO3 + KOH → KNO3 + H2O
概要
Nitric acid reacts with potassium hydroxide to produce potassium nitrate and water. This is a strong acid-strong base neutralization yielding a neutral salt. Potassium nitrate is one of the oldest known chemical compounds, historically called saltpeter.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 反応物 | Nitric Acid HNO₃ | 1 | (aq) |
| 反応物 | Potassium Hydroxide KOH | 1 | (aq) |
| 生成物 | Potassium Nitrate KNO₃ | 1 | (aq) |
| 生成物 | Water H₂O | 1 | (l) |
日常の例
Potassium nitrate (saltpeter) has been used for centuries in food preservation, particularly in curing meats, and as a key ingredient in gunpowder.
産業上の重要性
硝酸カリウムは肥料、花火、食品保存（塩漬け肉のE252）、熱媒体（溶融塩太陽熱蓄熱）、ガラス製造（清澄剤）に利用される。歴史的には黒色火薬（硝石）の主成分として重要であった。
特性
- タイプ
- Acid-Base
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -57.1 kJ/mol