Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 164
... Save the mixture in the flask for step ( 9 ) . 8. To the contents of the flask to which the acetic acid has been added , add 1 g . of sodium acetate crystals and 10 cc . of water . Test to make sure that the solution is acid . If it is ...
... Save the mixture in the flask for step ( 9 ) . 8. To the contents of the flask to which the acetic acid has been added , add 1 g . of sodium acetate crystals and 10 cc . of water . Test to make sure that the solution is acid . If it is ...
Strona 166
known solution ( saved from 1 ) does not equal 25 cc . , dilute with water to that volume . Evaporate 5 cc . of this ... save the filtrate for the nitrate and nitrite tests unless there is a sufficient amount of the original solution to ...
known solution ( saved from 1 ) does not equal 25 cc . , dilute with water to that volume . Evaporate 5 cc . of this ... save the filtrate for the nitrate and nitrite tests unless there is a sufficient amount of the original solution to ...
Strona 167
... Save the filtrate for ( 3 ) . 2. Detection of Ferricyanide . To the residue from step ( 1 ) , on the filter paper , add 10 cc . of 2 N sodium hydroxide solu- tion . If all of the residue does not dissolve , pour the filtrate over the ...
... Save the filtrate for ( 3 ) . 2. Detection of Ferricyanide . To the residue from step ( 1 ) , on the filter paper , add 10 cc . of 2 N sodium hydroxide solu- tion . If all of the residue does not dissolve , pour the filtrate over the ...
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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