An excellent nitrogen fertilizer (commonly known as fertilizer field powder), suitable for general soils and crops, can make branches and leaves grow vigorously, improve fruit quality and yield, and enhance crop resistance to disasters. It can be used as base fertilizer, top dressing and seed fertilizer. It can be meta-decomposed with salt to produce ammonium chloride, which reacts with aluminum sulfate to form ammonium alum, and together with boric acid, etc., to produce refractory materials. Adding to the plating solution increases conductivity. It is also a catalyst for food coloring, a nitrogen source for cultivating yeast in the production of fresh yeast, an acid dyeing dyeing aid, and a leather deashing agent. In addition, it is also used in beer brewing, chemical reagents and battery production. Another important function is to mine rare earth, extract ammonium sulfate as raw material, exchange rare earth elements in the ore by ion exchange, and collect the leaching solution to remove impurities, precipitate, press and burn, then form rare earth ore. About 1 ton of ammonium sulfate is required for 1 ton of rare earth ore.
It is also used in many biological applications. It is mostly used in protein purification processes because ammonium sulfate is an inert substance and is not easily reacted with other biologically active substances. It can protect protein activity to the greatest extent during purification. In addition, the solubility of ammonium sulfate is extremely high. Well, it can form a high salt environment, ready for protein precipitation and subsequent high salt purification. The solubility of ammonium sulfate at zero degree and normal temperature is quite different. The following is the molar concentration of ammonium sulfate at different temperatures at two temperatures.
