Magnesium sulfate heptahydrate
SIGALD/63140 - puriss. p.a., ACS reagent, ≥99.0% (KT)
Synonym: Epsom salts
CAS Number: 10034-99-8
Empirical Formula (Hill Notation): MgO4S · 7H2O
Molecular Weight: 246.47
EC Number: 231-298-2
MDL Number: MFCD00149785
Linear Formula: MgSO4 · 7H2O
Product Type: Chemical
| anion traces | chloride (Cl-): ≤5 mg/kg |
| nitrate (NO3-): ≤20 mg/kg | |
| assay | ≥99.0% (KT) |
| cation traces | As: ≤0.1 mg/kg |
| Ca: ≤10 mg/kg | |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤1 mg/kg | |
| heavy metals: ≤5 ppm (by ICP-OES) | |
| K: ≤10 mg/kg | |
| Mn: ≤5 mg/kg | |
| Na: ≤10 mg/kg | |
| NH4+: ≤20 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| form | powder or crystals |
| grade | ACS reagent |
| puriss. p.a. | |
| impurities | ≤0.005% insoluble matter |
| InChI | 1S/Mg.H2O4S.7H2O/c;1-5(2, |
| InChI key | WRUGWIBCXHJTDG-UHFFFAOYSA |
| pH | 5.0-8.2 (25 °C, 50 mg/mL in H2O) |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.O.O.[Mg++].[O-] |
| vapor density | <0.01 (vs air) |
| vapor pressure | <0.1 mmHg ( 20 °C) |
| Application: | Magnesium sulfate heptahydrate can be used as a catalyst to synthesize tri/tetra-substituted imidazoles via a one-pot condensation reaction of aromatic aldehydes, benzil, aliphatic and aromatic primary amines, and ammonium acetate. It is also used to synthesize phenazine and quinoxaline derivatives. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% (KT) |
| UNSPSC | 12352302 |