Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 165
... 10. To the residue from ( 8 ) add 25 cc . of water and a large excess of sodium car- bonate crystals , and boil for five minutes . Filter , wash , and reject the residue which consists largely of barium and calcium . carbonate . Add the ...
... 10. To the residue from ( 8 ) add 25 cc . of water and a large excess of sodium car- bonate crystals , and boil for five minutes . Filter , wash , and reject the residue which consists largely of barium and calcium . carbonate . Add the ...
Strona 167
... add 10 cc . of a solution containing 5 cc . 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 ...
... add 10 cc . of a solution containing 5 cc . 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 ...
Strona 168
... add 5 cc . of concentrated sulphuric acid and allow it to stand for a few minutes . Cool and pour into 15 cc . of ... ( 10 ) ( 1 cc . of glacial acetic acid and 4 cc . of a saturated solution of aniline in water ) . Warm the flask , if ...
... add 5 cc . of concentrated sulphuric acid and allow it to stand for a few minutes . Cool and pour into 15 cc . of ... ( 10 ) ( 1 cc . of glacial acetic acid and 4 cc . of a saturated solution of aniline in water ) . Warm the flask , if ...
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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