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Nitric acid reacts with most metals, but the details depend on the concentration of the acid and the nature of the metal. Dilute nitric acid behaves as a typical acid in its reaction with most metals. Magnesium, manganese, and zinc liberate H 2: Mg + 2 HNO 3 → Mg(NO 3) 2 + H 2 Mn + 2 HNO 3 → Mn(NO 3) 2 + H 2 Zn + 2 HNO 3 → Zn(NO 3) 2 + H 2
Anhydrous nitric acid, referred to as white fuming nitric acid, can be used to prepare water-free nitration mixtures, and this method is used in laboratory scale operations where the cost of material is not of primary importance. Fuming nitric acid is hazardous to handle and transport, because it is extremely corrosive and volatile. For ...
It is produced by treating limestone with nitric acid, followed by neutralization with ammonia: CaCO 3 + 2 HNO 3 → Ca(NO 3) 2 + CO 2 + H 2 O. It is also an intermediate product of the Odda Process: Ca 5 (PO 4) 3 OH + 10 HNO 3 → 3 H 3 PO 4 + 5 Ca(NO 3) 2 + H 2 O. It can also be prepared from an aqueous solution of ammonium nitrate, and ...
Safety data sheet (SDS) ... neutralizing free radicals by nitric oxide ... [65] [66] The sodium nitrite induces methemoglobinemia in swine, ...
Conversely, with some other catalysts, ethylene oxide may be reduced by hydrogen to ethylene with the yield up to 70%. The reduction catalysts include mixtures of zinc dust and acetic acid , of lithium aluminium hydride with titanium trichloride (the reducing agent is actually titanium dichloride , formed by the reaction between LiAlH 4 and ...
Solutions of dinitrogen pentoxide in nitric acid can be seen as nitric acid with more than 100% concentration. The phase diagram of the system H 2 O − N 2 O 5 shows the well-known negative azeotrope at 60% N 2 O 5 (that is, 70% HNO 3), a positive azeotrope at 85.7% N 2 O 5 (100% HNO 3), and another negative one at 87.5% N 2 O 5 ("102% HNO 3 ...
Nitric acid is generated via the Ostwald process by oxidation of ammonia with air over a platinum catalyst at 700–850 °C (1,292–1,562 °F), ≈9 atm. Nitric oxide and nitrogen dioxide are intermediate in this conversion: [44] NH 3 + 2 O 2 → HNO 3 + H 2 O. Nitric acid is used for the production of fertilisers, explosives, and many ...
The industrial production of ammonium nitrate entails the acid-base reaction of ammonia with nitric acid: [12] HNO 3 + NH 3 → NH 4 NO 3. The ammonia required for this process is obtained by the Haber process from nitrogen and hydrogen. Ammonia produced by the Haber process can be oxidized to nitric acid by the Ostwald process.