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15 per cent 20 pounds acid specific gravity—1.84 alkaline to phenolphthalein analysis aqueous beaker boiling Calculate as sodium cc of water cc portions chromate color containers contract cool Copper sulphate crucible Deduct determination dish dissolved in water Dry the filter ether solution Evaporate exceed excess extract fatty acid Fehling's Solution filter paper filtrate Free alkali freshly heat indicates the presence insoluble in alcohol insoluble in water layer liter longer alkaline matter volatile minutes neutral nitrate solution percentage portions of water Potassium present qualitative test quarter residue at 100 rinse rosin sample seal separatory funnel small amount soap sodium chloride sodium hydroxide solution solution with 20 Solution.—Dissolve Standard Silver Nitrate Standard Sodium Hydroxide steam bath sugar Sulphuric Acid taken at random three hours tion total matter insoluble unsaponifiable matter Unsaponified saponifiable matter volatile at 105 Wash the ether Wash the residue water and diluted weigh wrapped cake