Product Introduction

Ammonium sulfate is an inorganic substance, chemical formula is (NH4)2SO4, colorless crystal or white granule, no smell. decompose 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.

Color crystalline powder, aqueous solution is acidic. Insoluble in alcohol, acetone and ammonia. Hygroscopic, solidified into lumps after absorbing moisture. Completely decomposed into ammonia, nitrogen, sulfur dioxide and water when heated above 513℃. Ammonia gas is released when it interacts with alkali. Reacts with barium chloride solution to produce barium sulfate precipitate. It can also cause salinization of protein.

Uses

It is an excellent nitrogen fertilizer (commonly known as fertilizer powder), applicable to general soil and crops, can make branches and leaves grow vigorously, improve fruit quality and yield, enhance the resistance of crops to disasters, and can be used as base fertilizer, trailing 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, each mining production of 1 ton of rare earth ore requires about 5 tons of ammonium sulfate.

Biological uses are also many, mostly used in protein purification process, because ammonium sulfate belongs to the inert material, is not easy to react with other biologically active substances, in the purification process can maximize the protection of protein activity, in addition, the solubility of ammonium sulfate is very good, can form a high salt environment, for protein precipitation and the subsequent high salt purification to make preparations. There is a big difference between the solubility of ammonium sulfate at 0℃ and room temperature 25℃, the following is the molar concentration of ammonium sulfate at two temperatures with different saturation.