Method for production of a liquid composition of an ortho-dihydroxybenzene compound of high purity and said composition
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app pub date -
Dec 2, 2010
filing date -
Feb 15, 2002
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Abstract
The invention relates to a process for the preparation of a liquid composition of an ortho-dihydroxybenzyl compound of high purity characterized in that it consists in purifying the initial ortho-dihydroxybenzyl compound by distillation and recovering the condensed ortho-dihydroxybenzyl compound in an apparatus resistant to corrosion by the latter, and then mixing it with an organic solvent in a storage tank which is lined or made of a material which does not lead to metallic pollution. The invention also relates to a liquid composition of an ortho-dihydroxybenzyl compound of high purity comprising said compound and an organic solvent of said compound obtained according to said process.
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