Hydrofluoric Acid and Sodium Hydroxide
HF + NaOH → NaF + H2O
Tổng quan
Hydrofluoric acid, despite being a weak acid (Ka = 6.8 × 10⁻⁴), reacts completely with sodium hydroxide to form sodium fluoride and water. HF is unusually dangerous among weak acids because it penetrates skin and causes deep tissue burns by binding calcium ions in bones. The high heat of neutralization reflects the strong H-F bond.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Hydrofluoric Acid HF | 1 | (aq) |
| Chất phản ứng | Sodium Hydroxide NaOH | 1 | (aq) |
| Sản phẩm | Water H₂O | 1 | (l) |
Ví dụ thực tế
Sodium fluoride from this reaction is the form of fluoride added to municipal water supplies and toothpaste for dental protection.
Tầm quan trọng công nghiệp
HF is essential for glass etching, semiconductor manufacturing, petroleum refining, and uranium processing. Its safe handling requires specialized training.
Tính chất
- Loại
- Acid-Base
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -68,6 kJ/mol
Phản ứng liên quan
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Ammonia and Hydrochloric Acid
Ascorbic Acid and Sodium Hydroxide
Barium Hydroxide and Ammonium Thiocyanate (Endothermic)
Carbonic Acid and Sodium Hydroxide
Aluminum Hydroxide as Amphoteric Acid with NaOH
Aluminum Chloride and Chloride Ion (Lewis Acid-Base)
Hydrochloric Acid and Sodium Hydroxide Neutralization
Nitric Acid and Potassium Hydroxide Neutralization
Hydrochloric Acid and Barium Hydroxide
Frequently Asked Questions
What is the equation for Hydrofluoric Acid and Sodium Hydroxide?
The balanced equation is: HF + NaOH → NaF + H₂O.
What type of reaction is Hydrofluoric Acid and Sodium Hydroxide?
Hydrofluoric Acid and Sodium Hydroxide is a acid-base reaction.
Is Hydrofluoric Acid and Sodium Hydroxide exothermic or endothermic?
Hydrofluoric Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -68.6 kJ/mol.