Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 165
... 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- plete . Filter , wash the residue with ...
... 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- plete . Filter , wash the residue with ...
Strona 167
... dilute nitric acid and 5 cc . of a solution of zinc nitrate ( 100 grams of zinc nitrate per liter ) . If a precipitate forms , add zinc nitrate solution until precipitation is complete and filter . Wash the residue with a solution of ...
... dilute nitric acid and 5 cc . of a solution of zinc nitrate ( 100 grams of zinc nitrate per liter ) . If a precipitate forms , add zinc nitrate solution until precipitation is complete and filter . Wash the residue with a solution of ...
Strona 168
... acid and allow it to stand for a few minutes . Cool and pour into 15 cc . of water ; and then boil for one minute to ... dilute nitric acid , and warm for a short time until the residue changes colour . If all of the residue dissolves ...
... acid and allow it to stand for a few minutes . Cool and pour into 15 cc . of water ; and then boil for one minute to ... dilute nitric acid , and warm for a short time until the residue changes colour . If all of the residue dissolves ...
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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