Ammonium sulfate price for fertilizer ,CAS NO.: 7783-20-2

Product Name: Ammonium Sulphate

Molecular Formula: (NH4)2SO4

CAS NO.:7783-20-2

Molecular weight: 132.13

HS CODE: 31022100

Property: colorless crystal or white crystalline powder

Applications: used in metallurgy, medicine, leather, wood preservative,

textile, plating, ferment, fertilizer

Uses:

The primary use of ammonium sulfate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs.

It is also used as an agricultural spray adjuvant for water-soluble insecticides, herbicides, and fungicides. There, it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2,4-D (amine), glyphosate, and glufosinate herbicides.

Laboratory use:

In biochemistry, ammonium sulfate precipitation is a common method for purifying proteins by selective precipitation; Ammonium sulfate is extremely soluble in water and so can make very concentrated solutions, which can "salt out" proteins, causing their precipitation at particular concentrations. This provides a convenient and simple means to fractionate complex protein mixtures.As such, ammonium sulfate is also listed as an ingredient for many United States vaccines per the Center for Disease Control.

In the analysis of rubber lattices, volatile fatty acids are analyzed by precipitating rubber with a 35% ammonium sulfate solution, which leaves a clear liquid from which volatile fatty acids are regenerated with sulfuric acid and then distilled with steam. Selective precipitation with ammonium sulfate, opposite to the usual precipitation technique which uses acetic acid, does not interfere with the determination of volatile fatty acids.

Food additive:

As a food additive, ammonium sulfate is considered generally recognized as safe (GRAS) by the U.S. Food and Drug Administration,[6] and in the European Union it is designated by the E number E517. It is used as an acidity regulator in flours and breads.

Other uses:

Ammonium sulfate is used on a small scale in the preparation of other ammonium salts, especially ammonium persulfate.

A saturated solution of ammonium sulfate in heavy water (D2O) is used as an external standard in sulfur (33S) NMR spectroscopy with shift value of 0 ppm.

Ammonium sulfate has also been used in flame retardant compositions acting much like diammonium phosphate. As a flame retardant, it increases the combustion temperature of the material, decreases maximum weight loss rates, and causes an increase in the production of residue or char.[10] Its flame retardant efficacy can be enhanced by blending it with ammonium sulfamate.[citation needed]

Ammonium sulfate has been used as a wood preservative, but due to its hygroscopic nature, this use has been largely discontinued because of associated problems with metal fastener corrosion, dimensional instability, and finish failures.

About Damon:

Tianjin Damon International Trade Co.,Ltd. is an integrated company engaging in manufacturing and trading.Damon located in Tianjin Economic-Technological Development Area (TEDA) nearby the largest port in Northern China-Tianjin Xingang Port and possesses advantaged geographic position.Our main products are Sodium Sulphide,Sodium Hydrosulphide,Sodium Thiosulphate and Sodium Formate,etc. With the high quality products and professional service, products are exported to Southeast Asia, Africa, Middle East and Europe and other countries and regions,get highly trust and praise from domestic and foreign customers.  

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