Ostwald Process NO Oxidation

4NH3 + 5O2 → 4NO + 6H2O

개요

Ammonia is catalytically oxidized to nitric oxide over a platinum-rhodium gauze catalyst at about 850 C in the Ostwald process. Nitrogen is oxidized from -3 in NH₃ to +2 in NO. The NO is further oxidized to NO₂ and absorbed in water to make nitric acid. This process links the Haber process to nitric acid production.

참여 물질

역할 물질 계수 상태
반응물 Ammonia NH₃ 4 (g)
반응물 Oxygen O 5 (g)
생성물 Water H₂O 6 (g)

일상 속 예시

Nearly all explosives, from TNT to ammonium nitrate, begin with nitric acid produced by this catalytic oxidation of ammonia.

산업적 중요성

오스트발트법은 전 세계 질산의 거의 전부를 생산하며, 비료(질산암모늄), 폭약 및 화학 제조에 필수적입니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열
ΔH
-905.0 kJ/mol
촉매
Platinum-rhodium gauze

관련 반응

Iron(II) to Iron(III) Oxidation by Oxygen Bleaching with Sodium Hypochlorite Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Displacement of Hydrogen from Acid by Magnesium

Frequently Asked Questions

What is the equation for Ostwald Process NO Oxidation?
The balanced equation is: 4NH₃ + 5O₂ → 4NO + 6H₂O.
What type of reaction is Ostwald Process NO Oxidation?
Ostwald Process NO Oxidation is a redox reaction.
Is Ostwald Process NO Oxidation exothermic or endothermic?
Ostwald Process NO Oxidation is exothermic (releases energy). The enthalpy change (ΔH) is -905.0 kJ/mol.
What conditions are needed for Ostwald Process NO Oxidation?
This reaction requires a catalyst (Platinum-rhodium gauze).