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2 NH 3 + H 2 SO 4 → (NH 4) 2 SO 4. A mixture of ammonia gas and water vapor is introduced into a reactor that contains a saturated solution of ammonium sulfate and about 2% to 4% of free sulfuric acid at 60 °C. Concentrated sulfuric acid is added to keep the solution acidic, and to retain its level of free acid.
Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH 4) 2 SO 4 ·Fe(SO 4)·6H 2 O.Containing two different cations, Fe 2+ and NH + 4, it is classified as a double salt of ferrous sulfate and ammonium sulfate.
Atomic number Element Molar mass Formal standard atomic weight s.a.w., formal short Note Z calculated; g·mol −1 A r, standard [2] A r, abridged and conventional [2]; C 9 H 8 O 4: 180.159 g·mol −1
2 NH 3 + SO 2 + H 2 O → (NH 4) 2 SO 3. Ammonium sulfite is produced in gas scrubbers, now obsolete, consisting of ammonium hydroxide to remove sulfur dioxide from emissions from power plants. The conversion is the basis of the Walther Process. The resulting ammonium sulfite can be air oxidized to give ammonium sulfate. [4]
The latter is produced by the hydrogenation of nitric oxide using a platinum catalyst: [2] 2 NO + 3 H 2 + H 2 SO 4 → [NH 3 OH] 2 [SO 4] Another route to NH 2 OH is the Raschig process: aqueous ammonium nitrite is reduced by HSO − 3 and SO 2 at 0 °C to yield a hydroxylamido-N,N-disulfonate anion:: [3] [NH 4] + [NO 2] − + 2 SO 2 + NH 3 + H ...
Ammonium iron(III) sulfate, NH 4 Fe(SO 4) 2 ·12 H 2 O, or NH 4 [Fe(H 2 O) 6](SO 4) 2 ·6 H 2 O, also known as ferric ammonium sulfate (FAS) or iron alum, is a double salt in the class of alums, which consists of compounds with the general formula AB(SO 4) 2 · 12 H 2 O. [2] It has the appearance of weakly violet, octahedrical crystals.
Ra + 2H 2 O → Ra(HO) 2 + H 2. The reaction of radium oxide and water can also generate radium hydroxide, and the reaction releases a lot of heat: [citation needed] RaO + H 2 O → Ra(HO) 2. The compound can also be prepared by reacting radium nitrate with NaOH in solution. [citation needed]
Ammonium cerium(IV) sulfate is an inorganic compound with the formula (NH 4) 4 Ce(SO 4) 4 ·2H 2 O. It is an orange-colored solid. It is an orange-colored solid. It is a strong oxidant, the potential for reduction is about +1.44V.