Ammonium Sulfate

Ammonium sulfate is an inorganic substance with chemical formula (NH4)2SO4, colorless crystal or white granule, odorless. decomposes above 280℃. Solubility in water: 70.6g at 0°C, 103.8g at 100°C. Insoluble in ethanol and acetone. pH of 0.1mol/L aqueous solution is 5.5. Relative density 1.77. Refractive index 1.521. Ammonium sulphate is mainly used as a fertilizer for a variety of soils and crops. It can also be used in textile, leather, medicine and so on.

An excellent nitrogen fertilizer (commonly known as fertilizer powder), suitable for general soil and crops, can make branches and leaves grow vigorously, improve the quality and yield of fruits, enhance the resistance of crops to disasters, can be used as base fertilizer, fertilizer and seed fertilizer. It can be used as base fertilizer and seed fertilizer. It can make ammonium chloride by compound decomposition reaction with table salt, generate ammonium alum with aluminum sulfate, and make refractory materials with boric acid. It can be added into electroplating solution to increase electrical conductivity. It is also a catalyst for food coloring, a nitrogen source for cultivating yeast in the production of fresh yeast, a dyeing aid for acid dyes, and a leather de-ashing agent. In addition, it is also used in beer brewing, chemical reagents and storage battery production. There is also an important role is the mining of rare earths, mining ammonium sulfate as raw material, the use of ion exchange form of rare earth elements in the exchange out of the mineral soil, and then collect the leach solution in addition to impurities, precipitation, pressing, burning that is, into the rare earth ore.

Biological uses are also many, mostly used in protein purification process, because ammonium sulfate belongs to the inert material, not easy to react with other biologically active substances, in the purification process can maximize the protection of protein activity, in addition, ammonium sulfate solubility is very good.

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