Abstract
A micromethod for simultaneous determination of iodine and chlorine or iodine and bromine in organic compounds is described. After combustion in an oxygen-filled separatory funnel containing acidic sodium nitrite, iodine is produced, separated by carbon tetrachloride and oxidised with bromine water to iodate. After removal of carbon tetrachloride and excess bromine, the iodate is determined iodometrically. The aqueous combustion product is determined mercurimetrically for either chlorine or bromine. The average recoveries are 98.7%, 100.7% and 100.6% with iodine, chlorine and bromine in mixtures of their organically bounded compounds respectively. Microdetermination of iodine in presence of other halogens using sodium nitrite as absorbing agent andLeipert's method is described.
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