Fixed Nitrogen

absorption active adsorbed alkali ammonia catalysts ammonium carbamate ammonium nitrate ammonium sulfate amount Atmos atmospheres atoms bacteria calcium carbide calcium cyanamide calcium nitrate carbide carbon dioxide carbon monoxide catalyst cent charge Chem chemical Chilean nitrate chloride coal coke commercial compounds concentration constant containing converter crystal cylinder decomposition diammonium phosphate dissociation effect electron energy equation equilibrium fertilizer fixed nitrogen Fixed Nitrogen Research formation furnace gases gauze gram heat high pressure hydrogen hydrogen-nitrogen increase ions iron catalysts liquid material mechanism metal method mixture molecules nitric acid nitrogen fixation nitrogen peroxide nodules obtained operation organisms oxide oxygen phosphate phosphoric acid plant potassium nitrate present pure quantity ratio reacting reaction salt shown sodium carbonate sodium cyanide sodium nitrate soil soluble solution steel sulfuric acid superphosphate surface synthesis synthetic ammonia Table temperature tion tons tube urea velocity water vapor