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Sampling of Solutions
Brass Plating Solutions
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40 Whatman paper acetic acid add 10 ml addition alkaline aluminium ammonia ammonium sulphate analysis barium chloride beaker blue boiling burette cadmium calcium cathode caustic soda chromate chromic acid cleaner cobalt colour conical flask Content Method Cool copper crucible described in Method dilute to 200 dissolved distilled electrode electrolyte end point evaporate excess ferric ferrous filter paper filtrate fluoborate fluoride form beaker heat Hence hydrochloric acid hydrogen sulphide hydroxide Impurities indicator insoluble iodine iron liquid litre magnesium methyl orange N/10 silver nitrate NaCN NaOH nickel solutions nickel sulphate nitric acid oxide oxidised oz./gal permanganate Phillips beaker phosphate Pipette plating solution platinum potassium iodide precipitate present procedure reaction reagent removed salts sample silver nitrate sodium carbonate sodium cyanide soluble solution contains Standardisation stannate stannous sulphonic sulphuric acid Take Theory and Limitations tion titrate with N/10 transfer tube volumetric flask wash weighed yellow zinc