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 | 12352300 |