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Basic dyes:
These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on the fabric to attach themselves. These type of dyes colour fibers of nylons and polyesters. Aniline yellow, Magenta (Rosaniline) and Malachite green are the instances of basic dyes.
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Volumetric method for acids and bases - chemical methods Molecular mass of an acid can be ascertained by dissolving a known mass of the acid in water and titrating the solution
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