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DECOLOURIZING , in See also: practical chemistry and chemical technology, the removal of coloured impurities from a substance
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The See also: agent most frequently used is See also: charcoal, preferably prepared from See also: blood, which when shaken with a coloured solution frequently precipitates the coloured substances leaving the solution clear
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Thus the red colour of wines may be removed by filtering the See also: wine through charcoal; the removal of the dark-coloured
1 At the 7th plenary sitting of the second Hague See also: Conference (See also: September 7th, 1907) the chiefs of the See also: Spanish and Mexican delegations, M. de See also: Villa Urratia and M. de la Barra, announced the determination of their respective governments to accede to the Declaration of See also: Paris
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2 This relates to the incident in the Russo-See also: Japanese War of the transformation of See also: Russian vessels which had passed through the See also: Dardanelles unarmed
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impurities which arise in the manufacture of See also: sugar may be similarly effected
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Other " decolourizers " are sulphurous acid, permanganates and manganates, all of which have received application in the sugar industry
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