215422

Iron(II) sulfate heptahydrate

ACS reagent, ≥99.0%

• Synonym(s): Ferrous sulfate heptahydrate
• Linear Formula: FeSO₄ · 7H₂O
• CAS Number: 7782-63-0
• Molecular Weight: 278.01
• EC Number: 231-753-5
• MDL number: MFCD00149719
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752167
• NACRES: NA.21

Properties

• grade: ACS reagent
• vapor pressure: 14.6 mmHg ( 25 °C)
• Assay: ≥99.0%
• form: powder or crystals
• reaction suitability: reagent type: catalyst; core: iron
• greener alternative product characteristics: Catalysis; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• impurities: ≤0.01% insolubles; ≤0.05% Substances not pptd by NH₄OH
• pH: 3-4 (25 °C, 50 g/L)
• density: 1.898 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%
• cation traces: Cu: ≤0.005%; Fe³⁺: ≤0.1%; Mn: ≤0.05%; Zn: ≤0.005%
• SMILES string: O.O.O.O.O.O.O.[Fe++].[O-]S([O-])(=O)=O
• InChI: 1S/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
• InChI key: SURQXAFEQWPFPV-UHFFFAOYSA-L

Description

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 for more information.

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

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302,H315,H319
• Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable