1-Butyl-3-methylimidazolium tetrachloroferrate

Magnetic ionic liquid 1-Butyl-3-methylimidazolium tetrachloroferrate.svg BMIM FeCl4.svg 200px 359845-21-9 9849184 678-175-3 11674455 1S/C8H15N2.4ClH.Fe/c1-3-4-5-10-7-6-9(2)8-10;;;;;/h6-8H,3-5H2,1-2H3;4*1H;/q+1;;;;;+3/p-4 FYHLFBVHUIJIII-UHFFFAOYSA-J CCCCN1C=C[N+](=C1)C.Cl[Fe-](Cl)(Cl)Cl 8 15 4 1 2 PubChem 1-Butyl-3-methylimidazolium tetrachloroferrate https://pubchem.ncbi.nlm.nih.gov/compound/11674455 2026-05-05 pubchem.ncbi.nlm.nih.gov en 07 Warning 315 319 P264 P264+P265 P280 P302+P352 P305+P351+P338 P321 P332+P317 P337+P317 P362+P364 1-Butyl-3-methylimidazolium tetrachloroferrate is a magnetic ionic liquid whose appearance resembles that of honey.https://www.youtube.com/watch?v=5OjQTg4kxCM Making a True Magnetic Liquid 2025-01-17 Chemiolis 2026-06-07 YouTube It can be obtained from reacting 1-butyl-3-methylimidazolium chloride and ferric chloride resulting in a Lewis acid-base reaction. It has quite low water solubility.A new class of magnetic fluids: bmim[FeCl4] and nbmim[FeCl4] ionic liquids Satoshi Hayashi Satyen Saha Hiro-o Hamaguchi IEEE Transactions on Magnetics 42 2006 1 12–14 10.1109/TMAG.2005.854875 2006ITM....42...12H 42347833 It is highly polar. Due to the presence of the high spin anion FeCl4- Tetrachloroferrate, the liquid is paramagnetic and reportedly has a magnetic susceptibility of 40.6 × 10−6 emu g−1. Discovery of a Magnetic Ionic Liquid [bmim]FeCl4 Satoshi Hayashi Hiro-o Hamaguchi Chemistry Letters 33 2004 18 1590–1591 10.1246/cl.2004.1590 A small neodymium magnet is able to attract this liquid in a test tube. References Category:Magnetism Category:Ionic liquids Category:Imidazolium compounds category:ferrates Category:Iron(III) compounds Category:Iron_complexes Category:Chlorometallates