What is NICOTINE?

An oily, colourless, alkaloidal liquid of sp. gr. 1009, constituting the acrid basic principle of tobacco, in which it is found present in amount varying from 2 to 8 per cent. Nicotine is not present in the seed of the plants but appears in the young plant immediately the chlorophyll begins to function, and originates in the leaf. It is soluble in water, alcohol, and ether. Preparations of it are extensively used for horticultural purposes as an insecticide, also as a dip for the destruction of ticks and other pests on the wool of sheep.

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Definition of  NICOTINE