Iron(II) sulfate heptahydrate
SIGALD/12354 - puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, 99.5-104.5% (manganometric)
Synonym: Ferrous sulfate heptahydrate
CAS Number: 7782-63-0
Empirical Formula (Hill Notation): FeO4S · 7H2O
Molecular Weight: 278.01
EC Number: 231-753-5
MDL Number: MFCD00149719
Linear Formula: FeSO4 · 7H2O
Product Type: Chemical
| anion traces | chloride (Cl-): ≤100 mg/kg |
| assay | 99.5-104.5% (manganometric) |
| cation traces | As: ≤2 mg/kg |
| Ca: ≤200 mg/kg | |
| Cr: ≤50 mg/kg | |
| Cu: ≤30 mg/kg | |
| Fe3+: ≤2000 mg/kg | |
| Hg: ≤1 mg/kg | |
| K: ≤20 mg/kg | |
| Mg: ≤200 mg/kg | |
| Mn: ≤1000 mg/kg | |
| Na: ≤100 mg/kg | |
| Ni: ≤50 mg/kg | |
| Pb: ≤2 mg/kg | |
| Zn: ≤20 mg/kg | |
| density | 1.898 g/mL at 25 °C (lit.) |
| form | crystals |
| grade | puriss. |
| impurities | organic volatile impurities, complies (GC) |
| residual solvents, complies | |
| ≤0.005% heavy metals (as Pb) | |
| InChI | 1S/Fe.H2O4S.7H2O/c;1-5(2, |
| InChI key | SURQXAFEQWPFPV-UHFFFAOYSA |
| pH | 3-4 (20 °C, 5%) |
| quality | meets analytical specification of Ph. Eur., BP, USP, FCC |
| Quality Level | 200  |
| reaction suitability | reagent type: catalyst core: iron |
| shelf life | Shelf life is limited |
| SMILES string | O.O.O.O.O.O.O.[Fe++].[O-] |
| suitability | complies for appearance of solution |
| vapor pressure | 14.6 mmHg ( 25 °C) |
| Application: | Iron(II) sulfate heptahydrate (FeSO4.7H2O) may be used in the synthesis of maghemite nanoparticles. |
| Caution: | tends to oxidation by air |
| General description: | Iron(II) sulfate heptahydrate is a heptahydrate of iron(II) sulfate. It undergoes thermal degradation to afford hydrosulfate and oxysulfate of iron(III). Isothermal and dynamic thermal analysis methods have been proposed to study its thermal decomposition in air. |
| Packaging: | bottled under inert gas |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 - H315 - H319 |
| Precautionary statements | P264 - P270 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 22-36/38 |
| Safety Statements | 46 |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.5-104.5% (manganometric) |
| Density | 1.898 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |