Zinc ammonium nitrite

When ammonium reacts with NOJ compounds in the atmosphere, ammonium nitrite and nitrate are formed. Both compounds accelerate zinc corrosion but much less than SO2 and SO3. 

In rural areas overmanuring of agricultural land tends to increase the ammonia content of the air. The presence of normal atmospheric quantities of ammonia does not accelerate zinc corrosion, and petrochemical plants where ammonium salts are present show no accelerated attack on galvanized steel. However, ammonia will react with atmospheric sulfur oxides, producing ammonium sulfate, which accelerates paint film corrosion as weU as zinc corrosion. When ammonium reacts with NO compounds in the atmosphere, ammonium nitrite and nitrate are produced. Both compounds increase the rate of zinc corrosion, but less than SO2 or SO3. 

Write an unbalanced equation to represent each of the following reactions (a) potassium hydroxide and phosphoric acid react to form potassium phosphate and water (b) zinc and silver chloride react to form zinc chloride and silver (c) sodium hydrogen carbonate reacts to form sodium carbonate, water, and carbon dioxide (d) ammonium nitrite reacts to form nitrogen and water and (e) caibon dioxide and potassium hydroxide react to fonn potassium carbonate and water. 

Methylamine occurs in herring brine 2 in crude methyl alcohol from wood distillation,3 and in the products obtained by the dry distillation of beet molasses residues.4 It has been prepared synthetically by the action of alkali on methyl cyanate or iso-cyanurate 5 by the action of ammonia on methyl iodide,6 methyl chloride,7 methyl nitrate,8 or dimethyl sulfate 9 by the action of methyl alcohol on ammonium chloride,10 on the addition compound between zinc chloride and ammonia,11 or on phos-pham 12 by the action of bromine and alkali on acetamide 13 by the action of sodamide on methyl iodide 14 by the reduction of chloropicrin,15 of hydrocyanic or of ferrocyanic acid,16 of hexamethylenetetramine,17 of nitromethane,18 or of methyl nitrite 19 by the action of formaldehyde on ammonium chloride.20... 

Cupferron has usually been prepared from a mixture of alkyl nitrite and /3-phenylhydroxylamine in the presence of ammonia in ether or benzene solution,6 but it has also been made by the zinc dust reduction of nitrobenzene in the presence of amyl nitrite and ammonium hydroxide solution.7... 

In 140 water samples from the river Saale, sampled from 1986 to 1988 according to the technique described in Section 8.1.1.1, the heavy metals iron and zinc were determined using flame AAS and lead, cadmium, chromium, cobalt, copper, and nickel by AAS with electrothermal atomization in the soluble fraction (particle diameter <0.45 pm). The sampling points, located in Thuringia (Germany), are illustrated in Fig. 8-7. The method of standard addition, with three additions, was used to minimize matrix effects. The components ammonium, chloride, magnesium, nitrate, nitrite, phosphate, oxygen,... 

The solid nitrate absorbs dry ammonia, yielding a colourless mobile liquid, the composition varying with the temperature and pressure. The product is known as Divers s liquid, and appears to consist of solutions of ammonium nitrate and ammonia in one another. In its chemical behaviour this liquid resembles liquid ammonia. It dissolves bromine with liberation of nitrogen, and is converted by iodine into a solid mass, possibly Millon s compound, N2H6I2. It dissolves potassium, sodium, magnesium, zinc, and cadmium, the nitrate being reduced to nitrite.13... 

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