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Chrome tanning of leather improves its appearance, but at the same time, it emits both solid and liquid wastes. These solid wastes mainly after shaving process present in large amount causing hazard to the environment. Leather wastes were disintegrated to prepare hide powder and mixed with polyamide (nylon 6) in different ratios. The physical, mechanical and thermal properties of different composites...
Two new compounds, 2,6-bis-O-digalloyl-3-O-galloylglucose and 2-O-trigalloyl-1,3,4,6-tetrakis-O-galloylglucose, along with four known gallotannins, were isolated and identified from the leaves of Haematoxylon campechianum. In addition, four known flavonoid and three simple phenolic compounds were also detected.
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