215406

Ammonium iron(II) sulfate hexahydrate

ACS reagent, 99%

• Synonym(s): Ammonium ferrous sulfate hexahydrate, Ammonium iron(II) sulfate, Mohr’s salt
• Linear Formula: (NH₄)₂Fe(SO₄)₂ · 6H₂O
• CAS Number: 7783-85-9
• Molecular Weight: 392.14
• EC Number: 233-151-8
• MDL number: MFCD00150530
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752166
• NACRES: NB.24

Properties

• grade: ACS reagent
• Assay: 98.5-101.5%; 99%
• form: powder or crystals
• reaction suitability: reagent type: catalyst; core: iron
• impurities: ≤0.01% insolubles; ≤0.05% Not NH₄OH pptd.
• pH: 3-5 (20 °C, 50 g/L)
• mp: 100 °C (dec.) (lit.)
• anion traces: phosphate (PO₄^3-): ≤0.003%
• cation traces: Ca: 0.005%; Cu: ≤0.003%; Fe³⁺: ≤0.01%; K: 0.002%; Mg: 0.002%; Mn: ≤0.01%; Na: 0.02%; Zn: ≤0.003%
• SMILES string: N.N.O.O.O.O.O.O.[Fe++].OS([O-])(=O)=O.OS([O-])(=O)=O
• InChI: 1S/Fe.2H3N.2H2O4S.6H2O/c;;;2*1-5(2,3)4;;;;;;/h;2*1H3;2*(H2,1,2,3,4);6*1H2/q+2;;;;;;;;;;/p-2
• InChI key: MQLVWQSVRZVNIP-UHFFFAOYSA-L

Description

Application

Ammonium iron(II) sulfate hexahydrate can be used as a green catalyst in the:

• Newman-Kwart rearrangement to synthesize functionalized thiophenols.
• Oxidation of aromatic, aliphatic, and conjugated aldehydes to the corresponding carboxylic acids.
• Synthesis of biscoumarins via condensation reaction.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable