Ammonium sulphate
CAS Number: 7783-20-2
Linear Formula: (NH4)2SO4
Molecular Weight: 132.14
EC Number: 231-984-1
MDL number: MFCD00003391
PubChem Substance ID: 24890861


Application May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.



grade for molecular biology
assay ≥99.0%
total impurities ≤0.005% Insolubles
mp >280 °C (dec.)(lit.)
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
abs. A1M/260 ≤0.03
  A1M/280 ≤0.025
foreign activity DNase, RNase, and protease, none detected



Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
WGK Germany 1
RTECS BS4500000