Extraction,purification and characterisation of nutraceutical grade fulvic acid from lignite coal of lakhra-jamshoro,Pakistan

Fulvic acid,a water-soluble substance was extracted from pakistani coal. pure fulvic acid fraction was recovered before the start of its decomposition. the mechanism forming the precipitates was based on re-crystallisation of fulvic acid in water (2.45% yields). fourier transform infra red (ft-ir) as well uv-vis spectroscopic techniques were successfully employed to characterise and confirm the obtained crystals as fulvic acid. it was observed that the spectral features obtained from ft-ir and uv-vis spectroscopy were similar to those reported for fulvic acid fractions from other sources. recovered pure fraction of fulvic acid was characterised by the suggested simple techniques.