Nitrogen ammonium nitrate . thermal

Common oxides of nitrogen are obtained readily by a variety of methods. For example, nitrous oxide, N2O, can be produced by thermal decomposition of ammonium nitrate, NH4NO3, at about 250°C. 

Dinitrogen monoxide, N2O (nitrogen oxidation number +1), is a non-toxic, odourless and tasteless gas it is a linear molecule with an unsymmetrical N—N—O linkage. N2O is made by careful thermal decomposition of ammonium nitrate at 250 °C ... 

Catalytic elfects on the thermal decomposition and burning under nitrogen of the nitrate were determined for ammonium dichromate, potassium dichromate, potassium chromate, barium chloride, sodium chloride and potassium nitrate. Chromium(VI) salts are most effective in decomposition, and the halides salts during burning of the nitrate [1]. The effect of chromium compounds soluble in the molten nitrate, all of which promote decomposition of the latter, was studied (especially using ammonium dichromate) in kinetic experiments [2],... 

The copper chromium oxide (Cu/Cr = 1) has been prepared by coprecipitation of copper and chromium nitrates with ammonium hydroxide, followed by thermal decomposition in flowing nitrogen up to the final temperature (370"C), according to a previously described method (8). The apparatus and the catalytic procedure have also been described elsewhere in case of gas phase reactions (5) and liquid phase reactions (7). 

Zinc nitrate (Zn(N03)2, Aldrich) was dissolved in ethanol and an aqueous solution of ammonium hydroxide was added drop by drop until the metal hydroxide was dissolved completely. Then an alcoholic solution of 1-dodecanethiol was added to this system at room temperature, under stirring, and the precipitate was isolated by vacuum filtration. The Zn mercaptide, Zn(SCi2H25)2, obtained was dissolved in chloroform and blended with polystyrene, leading to translucent films after solvent removal. The thermal annealing of zinc mercaptide/polystyrene blends, performed under nitrogen, at 250°C, gave a nanoscopic ZnS phase. 

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