Ammonium sulfate ≥99%, white crystalline powder, Ultrapure

Supplier: MP BIOMEDICALS (FKA ICN BIOMED

Synonyms: Diammonium sulfateSulphuric acid diammonium saltDiammonium sulphateSulfuric acid diammonium salt

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IC808237EA 1343.16 USD
IC808237 IC808229 IC808211
Ammonium sulfate ≥99%, white crystalline powder, Ultrapure
Ammonium sulphate

Ammonium sulfate is an inorganic salt prepared by treating ammonia with sulfuric acid. Ammonium sulfate decomposes upon heating above 250 °C, forming ammonium bisulfate.


Heating at higher temperatures results in decomposition into ammonia, nitrogen, sulfur dioxide, and water. Ammonium sulfate forms many double salts (ammonium metal sulfates) when its solution is mixed with equimolar solutions of metal sulfates and the solution is slowly evaporated. Such double metal sulfates include ammonium cobaltous sulfate, ferric ammonium sulfate, ammonium nickel sulfate and ammonium cerous sulfate.


Ammonium sulfate is a widely used reagent in molecular biology and chromatography. It is useful in the isolation and purification of enzymes and proteins. It is used for the precipitation or fractionation of proteins or for purification of antibodies.It is also useful for crystallographic analysis of nucleic acids and proteins. Ammonium sulfate is also widely used in HPLC of proteins, such as in hydrophobic interaction chromatography. Ammonium sulfate is used in long PCR buffer, in PCR lysis solution, and in secondstrand cDNA synthesis. Also it is used for the HPLC analysis of phospholipids.


Soluble freely in water; insoluble in alcohol, acetone.

Formula: (NH₄)₂SO₄
MW: 132.14 g/mol
Melting Pt: >280 °C
Density: 1.78 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00003391
CAS Number: 7783-20-2
EINECS: 231-984-1
REACH: 01-2119455044-46
Merck Index: 13,00559

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Specification Test Results

Synonyms Sulfuric acid diammonium salt; Mascagnite
Form White Crystalline Powder
Storage Store at Room Temperature (15-30 °C).
Heavy Metals Lead : ≤0.5 ppm ,Iron : ≤0.5 ppm , Zinc : ≤0.5 ppm
pH 5 - 6 (5% aq soln)

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