Description
Description
Ammonium Sulfate >= 99%, 5 Kg
Synonym: Mascagnite
- CAS Number 7783-20-2
- Linear Formula (NH4)2SO4
- Molecular Weight 132.14
- EC Number 231-984-1
- MDL number MFCD00003391
- eCl@ss 38030408
- PubChem Substance ID 24890861
- NACRES NA.31
| 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 |
General description
Ammonium sulfate is commonly used in agriculture as a nitrogen fertilizer. In aqueous solution, it dissociates to form ammonium and sulfate ions.
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 Information
Personal Protective Equipment Eyeshields, Gloves, type N95 (US)
RIDADR NONH for all modes of transport
WGK Germany 1
RTECS BS4500000
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