Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 162
... removed by the addition of Zn ++ in an acid solution , and sulphide is removed as zinc sulphide in an alkaline solution . The other ions of group two are then precipit- ated as silver salts in the presence of nitric acid . Group three ...
... removed by the addition of Zn ++ in an acid solution , and sulphide is removed as zinc sulphide in an alkaline solution . The other ions of group two are then precipit- ated as silver salts in the presence of nitric acid . Group three ...
Strona 169
... removed by Pb and Ag * . 5. Detection of Acetate . To the other half of the filtrate from ( 3 ) add a concen- trated solution of sodium chloride until precipitation is complete . Filter , and to 2 cc . of the filtrate add 1 cc . of a ...
... removed by Pb and Ag * . 5. Detection of Acetate . To the other half of the filtrate from ( 3 ) add a concen- trated solution of sodium chloride until precipitation is complete . Filter , and to 2 cc . of the filtrate add 1 cc . of a ...
Strona 173
... Removal of Gases from Alumin- ium Alloys by Mixtures of Nitrogen and Volatile Chlorides . " By J. D. GROGAN and T. H. SCHOFIELD . Gas may be effectively removed from certain aluminium alloys by mixtures of nitrogen and certain volatile ...
... Removal of Gases from Alumin- ium Alloys by Mixtures of Nitrogen and Volatile Chlorides . " By J. D. GROGAN and T. H. SCHOFIELD . Gas may be effectively removed from certain aluminium alloys by mixtures of nitrogen and certain volatile ...
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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