Assay from Supplier's CofA1-n-Butyl-2,3-dimethylimidazolium cation: ≥98.5% (by Ion Chromatography)
Assay from Supplier's CofATetrafluoroborate anion: ≥98.5% (by Ion Chromatography)
Residual halide≤100ppm (by Ion Chromatography)
Water Content (Karl Fischer Titration)≤250ppm
Proton NMRConforms to structure
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