Ammonium sulfate Cell culture 250GM Go Back


: 7783-20-2

Molecular Formula

: (NH4)2SO4

Molecular Weight

: 132.14
Appearance: Colorless to white crystals or white granules.
Solubility: Freely soluble in water, Insoluble in alcohol.
Assay (Alkalimetric): 99.5% - 100.5%
Identification (Ammonium): The vapour turns moistened red litmus paper to blue and blackens a strip of filter paper moistened with mercurous nitrate.
Identification (Sulfate): A white precipitate should from which should insoluble in hydrochloric acid or nitric acid.
Insoluble matter: NMT 0.001%
pH(5% aq soln), at 25°C: 5.0 - 6.0
Chloride (Cl): NMT 0.0002%
Nitrate (NO3): NMT 0.0010%
Phosphate (PO4): NMT 0.0005%
Heavy metals: NMT 0.0005%
Aluminium (Al): NMT 0.000075%
Arsenic (As): NMT 0.00002%
Calcium (Ca): NMT 0.001%
Cadmium(Cd): NMT 0.0001%
Chromium(Cr): NMT 0.000075%
Copper (Cu): NMT 0.0001%
Iron (Fe): NMT 0.0002%
Magnesium (Mg): NMT 0.0005%
Lead (Pb): NMT 0.0002%
Platinum(Pt): NMT 0.0001%
Zinc (Zn): NMT 0.0001%
Loss on drying at 105°C: NMT 0.1%
Residue on ignition(as SO4): NMT 0.005%
Total aerobic microbial count: NMT 1000 CFU/gm
Total combined yeast and mold count: NMT 10 CFU/gm
Bacterial endotoxin: NMT 2.5 IU/gm
Salmonella: should be Absent/10gm
Escherichia coli: should be Absent/gm
Staphylococcus aureus: should be Absent/gm
Pseudomonas aeruginosa: should be Absent/gm
Candida albicans: should be Absent/gm
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