Ammonium sulphate by MP Biomedicals is a high grade reagent. This compound is an inorganic salt. It is available as a crystalline white powder which is freely soluble in water, however insoluble in alcohol, acetone. It has a melting point above 280 C and can be stored at room temperature. Ammonium sulphate is manufactured by treating ammonia, often as a by-product from coke ovens, with sulphuric acid. It forms many double salts (ammonium metal sulphates) when its solution is mixed with equimolar solutions of metal sulphates. CAS No. 7783-20-2 Quantity Provided: 1 kg per pack Molecular Formula: (NH4)2SO4 Molecular Weight: 132.14 Soluble in water Ammonium sulphate is widely used in chemical and biological sectors. The major use of ammonium sulphate is as a fertilizer for alkaline soils. In the food industry it is used as E517, where it functions as an acidity regulator in flours and breads. It is useful in the isolation and purification of enzymes and proteins. Ammonium sulphate is also widely used in HPLC of proteins, such as in hydrophobic interaction chromatography. It also finds applications in long PCR buffer, in PCR lysis solution, and in second strand cDNA synthesis. These reagents may be used in the synthesis of various compounds in industrial processes, and are suitable for research.