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NH4)2SO4 is ammonium sulfate.
It reacts with an alkaline solution to form sulfate and ammonia.
Get ammonia, sulfuric acid and water.
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Ammonium sulfate is an inorganic substance with the chemical formula (NH4)2SO4, colorless crystals or white particles, and odorless. 280 or more decomposed. Solubility in water:
0 hours, 100 hours. Insoluble in ethanol and acetone. The pH of the aqueous solution is.
Relative density. Refractive index. Ammonium sulfate is mainly used as a fertilizer and is suitable for a variety of soils and crops.
It can also be used in textile, leather, medicine, etc.
Physical. inchi=1/;;1-5(2,3)4/h2*1h3;(h2,1,2,3,4)
Appearance and properties: white crystalline powder.
Melting Point: 230-280
Refractive index (relative density:
Solubility: 0 solubility, dissolution, dissolution, dissolution,
Chemical properties. White crystalline powder, aqueous solution is acidic. Insoluble in alcohol, acetone and ammonia. It is hygroscopic and consolidates into lumps after moisture absorption.
Heated to 513 or more, it completely decomposes into ammonia, nitrogen, sulfur dioxide and water. When it reacts with alkalis, ammonia gas is released. It reacts with barium chloride solution to form a barium sulfate precipitate.
It is also possible to cause salting out of proteins.
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Role of ammonium sulfate:
Ammonium sulfate can be used as fertilizer to make branches and leaves grow vigorously, improve fruit quality and yield, enhance crops' resistance to disasters, and can be used as base fertilizer, top dressing and seed fertilizer.
Uses: It is mostly used in the protein purification process, because ammonium sulfate is an inert substance, which is not easy to react with other bioactive substances, and can protect the protein activity to the greatest extent in the purification process.
Nitrogen fertilizer is suitable for general soil and crops, which can make branches and leaves grow vigorously, improve fruit quality and yield, enhance crops' resistance to disasters, and can be used as base fertilizer, top dressing and seed fertilizer. It can be metabolized with salt to produce ammonium chloride, react with aluminum sulfate to form ammonium alum, and make refractory materials with boric acid.
Another important role is to mine rare earths, mining ammonium sulfate as raw materials, using ion exchange forms to exchange the rare earth elements in the ore, and then collecting the leaching solution to remove impurities, precipitation, pressing, burning to become rare earth ore, every mining and production of 1 ton of rare earth ore needs about 5 tons of ammonium sulfate.
Precautions for the use of ammonium sulfate.
1) It should not be applied in contact with other alkaline fertilizers or alkaline substances to prevent reducing fertilizer efficiency.
2) It is not advisable to apply ammonium sulfate on the same cultivated land for a long time, otherwise the soil will become sour and cause compaction. If it is really necessary to apply, it can be combined with the application of some lime or organic fertilizer in an appropriate amount. However, care must be taken not to mix with lime to prevent ammonium sulfate from decomposing and causing nitrogen loss.
Generally, the combined application of the two should be separated by 3 to 5 days.
3) Not suitable for application on acidic soils. It is obtained by neutralization of ammonium hydroxide and sulfuric acid, crystallization, centrifugal separation and drying.
The above content refers to Encyclopedia - Ammonium Sulfate.
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Ammonium sulphate can be used as fertilizer to enhance the resistance of crops to disasters; Ammonium sulfate can also be used in textiles, leather, medicine, etc. Biologically, ammonium sulfate can be used in the field of protein purification process, which can protect the protein activity to the greatest extent during the purification process.
What is ammonium sulfate.
Ammonium sulfate is an inorganic substance, the pure product is a colorless transparent orthorhombic crystal, the chemical formula is (NH4)2SO4, insoluble in alcohol, acetone and ammonia. Ammonium sulfate is odorless, hygroscopic, consolidates into lumps after moisture absorption, and decomposes more than 280. Solubility in water:
0 hours, 100 hours. Insoluble in ethanol and acetone. The pH of the aqueous solution is.
Relative density. Refractive index.
Ammonium sulfate is very soluble and can form a high-salt environment in preparation for protein precipitation and subsequent high-salt purification. The solubility of ammonium sulfate at zero degrees and room temperature 25 degrees is quite different.
Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. It should be stored separately from acids and alkalis, and should not be mixed. The storage area should be equipped with suitable materials to contain the spill.
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