Task: Text Categorization
Input (English): The original use of osmium and uranium catalysts for it has now given way to iron catalysts containing potassium and aluminum oxide promoters. The reaction involved is reversible and exothermic, so that a high yield is favored by low temperatures around 450 degrees Celsius. The raw material now most frequently used for it is called synthesis gas, which is used in the reaction between 3H2 and N2. Of immense importance for the fixation of nitrogen for fertilizers, FTP, what is this industrial process for producing ammonia
Output (English): Science