Ammonium Sulfate The Essential Ingredient for Textile and Leather Industries

Ammonium sulfate is an inorganic substance with the chemical formula (NH4) 2SO4. It is a colorless crystal or white particle with no odor. Decompose above 280 ℃. Solubility in water: 70.6g at 0 ℃, 103.8g at 100 ℃. Insoluble in ethanol . The pH of a 0.1mol/L aqueous solution is 5.5. The relative density is 1.77. Refractive index 1.521. Ammonium sulfate is mainly used as fertilizer and is suitable for various soils and crops. It can also be used in textile, leather, medicine and other fields.

A type of excellent nitrogen fertilizer (commonly known as fertilizer field powder), suitable for general soil and crops, can promote vigorous growth of branches and leaves, improve fruit quality and yield, enhance crop resistance to disasters, and can be used as base fertilizer, topdressing, and seed fertilizer. It can undergo double decomposition reaction with table salt to produce ammonium chloride, react with aluminum sulfate to produce ammonium alum, and together with boric acid, produce refractory materials. Adding it to the plating solution can increase conductivity. It is also a catalyst for food sauce color, a nitrogen source for cultivating yeast in fresh yeast production, an acid dye dyeing aid, and a leather de ashing agent. In addition, it is also used in beer brewing, chemical reagent and battery production. Another important function is to mine rare earths. Ammonium sulfate is used as raw material for mining, and the rare earth elements in the ore soil are exchanged through ion exchange. After collecting the leachate for impurity removal, precipitation, pressing, and incineration, the rare earth ore is obtained. About 5 tons of ammonium sulfate are required to produce 1 ton of rare earth ore for mining.
There are also many biological applications, mostly used in protein purification processes. Ammonium sulfate is an inert substance that is not easily reacted with other bioactive substances, which can protect protein activity to the greatest extent during the purification process. In addition, ammonium sulfate has excellent solubility and can form a high salt environment, preparing for protein precipitation and subsequent high salt purification.