Inside was a green paste, waxy in lustre, the odour curiously heavy and persistent.

里边是一种绿色的软膏，有蜡质的光泽，气味浓郁，而且经久不散。

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Because of no volatilization, no pollution, no odour, high selectivity and catalysis, easy to recycle, ionic liquids become one of the hotspots of green chemistry as a new green solvent.

离子液体不挥发，无污染，无臭味，具有高选择性和催化作用且易于循环回收利用，作为一种新型的高效绿色溶剂，以其突出的优势已成为绿色化学研究的热点之一。

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