Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 163
... chromate , and oxalate . These anions are brought into solution as sodium salts by treating the residue ( after the removal of the first and second sub - groups ) with a boiling concentrated solution of sodium carbonate . Oxalate and ...
... chromate , and oxalate . These anions are brought into solution as sodium salts by treating the residue ( after the removal of the first and second sub - groups ) with a boiling concentrated solution of sodium carbonate . Oxalate and ...
Strona 164
... chromate , carbonate , phosphate , arsenate , oxalate , sulphite , sulphate , and fluoride , as well as a small amount of arsen- ite which may not have been completely dissolved in step ( 2 ) . Transfer all of the residue to a small 125 ...
... chromate , carbonate , phosphate , arsenate , oxalate , sulphite , sulphate , and fluoride , as well as a small amount of arsen- ite which may not have been completely dissolved in step ( 2 ) . Transfer all of the residue to a small 125 ...
Strona 165
... chromate , and carbonate . Make slightly acid with concentrated acetic acid and boil to expel carbon dioxide . Cool the solution and make it alkaline with ammonium hydroxide . Add a solution of calcium nitrate until precipitation is com ...
... chromate , and carbonate . Make slightly acid with concentrated acetic acid and boil to expel carbon dioxide . Cool the solution and make it alkaline with ammonium hydroxide . Add a solution of calcium nitrate until precipitation is com ...
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acetic acid acetone add 10 cc added addition alkaline alloys ammonium hydroxide analysis anions annealing arsenate arsenite barium and calcium barium nitrate boiling borate calcium nitrates carbonate Chem Chemical chloride chromate colour complete consisting containing Cool crystals cyanide Detection determine dilute discard dissolve distortion drops effect excess fatigue ferric ferrocyanide Filter filtrate flask fluoride followed formate forms give grams heat Heavy hydrogen hydroxide increase indicates insoluble Institution ions lead Lecture London material Mechanical metals methods minutes mixture moulds nickel obtained oxalate Patent phosphate plant portion potassium precipitate precipitate forms precipitation is complete present produced published reduction removed salts saturated Save Sensitivity Separation September shown silver Slight sodium soluble solution solution containing step studied Sub-Group sufficiently sulphide sulphuric acid tartrate temperature test tube thiocyanate thiosulphate tion various volume Wash the residue white precipitate wire Yellow