Magnesium sulfate heptahydrate
SIGALD/13142 - 99.5-100.5% (calc. to the dried substance), meets analytical specification of Ph. Eur., BP,USP, FCC
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-): ≤150 mg/kg |
| assay | 99.5-100.5% (calc. to the dried substance) |
| cation traces | As: ≤2 ppm |
| Fe: ≤20 ppm | |
| Pb: ≤4 ppm | |
| Se: ≤30 ppm | |
| form | powder or crystals |
| impurities | acidity or alkalinity, in accordance |
| organic volatile impurities, complies (GC) | |
| residual solvents, complies | |
| ≤0.001 ppm heavy metals (as Pb) | |
| ≤0.004% free alkali (as MgO) | |
| ≤0.01% free acid (as H2SO4) | |
| InChI | 1S/Mg.H2O4S.7H2O/c;1-5(2, |
| InChI key | WRUGWIBCXHJTDG-UHFFFAOYSA |
| loss | 48.0-52.0% loss on drying, 450 °C |
| pH | 5.0-9.2 (25 °C, 5%) |
| quality | meets analytical specification of Ph. Eur., BP,USP, FCC |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.O.O.[Mg++].[O-] |
| suitability | complies for appearance of solution |
| vapor density | <0.01 (vs air) |
| vapor pressure | <0.1 mmHg ( 20 °C) |
| General description: | Magnesium sulfate heptahydrate is the hydrated salt of magnesium. The spin-Hamiltonian parameters of the (Cu(H2O)6)2+ complex in magnesium sulfate heptahydrate have been determined by electron spin resonance (ESR) spectral studies. Raman spectra of 10 hydrated and anhydrous forms of magnesium sulfates have been reported. Their crystal structure and space groups have been evaluated by Raman and XRD (X-ray diffraction) studies. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.5-100.5% (calc. to the dried substance) |
| UNSPSC | 12352300 |