Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 164
... Detection of Anions of First Sub - Group . 3. Detection of Ferrocyanide . To 5 cc . of the filtrate from ( 2 ) add 1 cc . of dilute hydrochloric acid and a few drops of ferric chloride . A blue precipitate of ferric ferro- cyanide ...
... Detection of Anions of First Sub - Group . 3. Detection of Ferrocyanide . To 5 cc . of the filtrate from ( 2 ) add 1 cc . of dilute hydrochloric acid and a few drops of ferric chloride . A blue precipitate of ferric ferro- cyanide ...
Strona 165
... Detection of Oxalate . Add about 50 cc . of 3 N acetic acid to the residue from ( 10 ) and heat to boiling . Filter and wash the residue with water . Discard the filtrate and washings which contain any tartrate which may have been ...
... Detection of Oxalate . Add about 50 cc . of 3 N acetic acid to the residue from ( 10 ) and heat to boiling . Filter and wash the residue with water . Discard the filtrate and washings which contain any tartrate which may have been ...
Strona 168
... Detection of Chloride . To the re- mainder of the filtrate from ( 7 ) add 5 cc . of concentrated sulphuric 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 expel carbon ...
... Detection of Chloride . To the re- mainder of the filtrate from ( 7 ) add 5 cc . of concentrated sulphuric 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 expel carbon ...
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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