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