Iron(II) sulfate heptahydrate
SIGALD/215422 - ACS reagent, ≥99.0%
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-): ≤0.001% |
phosphate (PO43-): ≤0.001% | |
assay | ≥99.0% |
cation traces | Cu: ≤0.005% |
Fe3+: ≤0.1% | |
Mn: ≤0.05% | |
Zn: ≤0.005% | |
density | 1.898 g/mL at 25 °C (lit.) |
form | powder or crystals |
grade | ACS reagent |
greener alternative category | ![]() |
greener alternative product characteristics | Catalysis Learn more about the Principles of Green Chemistry ![]() |
impurities | ≤0.01% insolubles |
≤0.05% Substances not pptd by NH4OH | |
InChI | 1S/Fe.H2O4S.7H2O/c;1-5(2, |
InChI key | SURQXAFEQWPFPV-UHFFFAOYSA |
pH | 3-4 (25 °C, 50 g/L) |
Quality Level | 200 ![]() |
reaction suitability | reagent type: catalyst core: iron |
SMILES string | O.O.O.O.O.O.O.[Fe++].[O-] |
vapor pressure | 14.6 mmHg ( 25 °C) |
Application: | Iron(II) sulfate heptahydrate is used as a catalyst for greener amide bond formation from amines and aldehydes. It has been used in the synthesis of maghemite nanoparticles. Iron-Catalyzed Efficient Synthesis of Amides from Aldehydes and Amine Hydrochloride Salts ![]() ![]() |
General description: | We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalysis. Click here ![]() ![]() |
Packaging: | 1 kg in poly bottle |
Packaging: | 5, 250 g in poly bottle |
Symbol | ![]() |
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 | ≥99.0% |
Density | 1.898 g/mL at 25 °C (lit.) |
UNSPSC | 12352300 |