FIELD: chemistry.
SUBSTANCE: invention relates to cleaning of ethanol used as solvent for optical measurements. Proposed method consists in processing ethanol by oxidiser and base with subsequent rectification. Note here that iodine in concentration of, at least, 0.0125 wt % is used as oxidiser. Note also that processing by iodine and base is performed in boiling.
EFFECT: lower costs, translucent (up to 210 nm) ethanol.
4 ex
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