Quantitative Chemical Analysis, Volumen1J. & A. Churchill, 1876 - 524 páginas |
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Términos y frases comunes
accurate alkaline alumina ammonia anal analysis apparatus arsenic acid baryta beaker binoxide boiling burette carbonate of ammonia carbonate of soda carbonic acid Chem chloride of ammonium chloride of potassium chloride of sodium chromate chromic acid cobalt color compounds concentrated containing converted copper crucible cyanide decantation decomposed decomposition Determination dilute dissolves dried estimation evaporation excess Expt filter filtrate flask fluid fused glass hydrate hydrochloric acid hydrogen hyposulphite ignition insoluble in water iodide of potassium iodine Journ latter lead lime magnesia manganese mercury metallic method mixed mixture nitrate nitric acid obtained oxalic acid oxide permanganate phosphate phosphoric acid potassa potassium powder prakt precipitate present pure readily red heat residue salt separation sesquioxide sesquioxide of iron silicic silicic acid soluble solution of chloride substance sulphate sulphide sulphide of ammonium sulphuretted hydrogen sulphuric acid temperature tube volatile volumetric washed weighed Zeitschr zinc
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Página 444 - ... has redissolved and the fluid is decidedly acid. Allow it to stand at least for 24 hours in a warm place, take out a portion of the supernatant fluid with a pipette, mix it with more nitrite of potassa and observe whether a further precipitation takes place in this after long standing.