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A4418 Sigma-Aldrich

Ammonium sulfate

for molecular biology, ≥99.0%

Synonym: Mascagnite

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Properties

Related Categories Ammonium Salts, Biochemicals, Buffers / Buffer Salts, Buffers / Buffer salts, Chemical Synthesis,
Quality Level   200
grade   for molecular biology
assay   ≥99.0%
impurities   ≤0.005% Insolubles
pH   5.0-6 (25 °C, 132 g/L)
mp   >280 °C (dec.) (lit.)
solubility   H2O: 0.667 g/mL
density   1.77 g/mL at 25 °C (lit.)
anion traces   chloride (Cl-): ≤5 ppm
cation traces   Cu: ≤5 ppm
  Fe: ≤5 ppm
  Zn: ≤5 ppm
  heavy metals (as Pb): ≤2 ppm
absorption   ≤0.025 at 280 at 1 M
  ≤0.03 at 260 at 1 M
foreign activity   DNase, RNase, and protease, none detected
SMILES string   N.N.OS(O)(=O)=O
InChI   1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key   BFNBIHQBYMNNAN-UHFFFAOYSA-N

Description

General description

Ammonium sulfate is commonly used in agriculture as a nitrogen fertilizer. In aqueous solution, it dissociates to form ammonium and sulfate ions.

Packaging

1 kg in poly bottle

100, 500 g in poly bottle

5 kg in poly drum

Application

Ammonium sulfate has been used in the preparation of ′Blue Silver′ colloidal Coomassie stain for proteins.
Ammonium sulfate may be 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.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
BS4500000

pHast Pack
Protocols & Articles

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Peer-Reviewed Papers
15

References

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Product #

Description

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09978 Ammonium sulfate, BioUltra, ≥99.0% (T)

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