Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 163
... complete . Filter , and to the first portion of the filtrate add a few drops of acetone to determine whether or not there is further precipitation . Also test another portion for complete precipitation with a solution containing barium ...
... complete . Filter , and to the first portion of the filtrate add a few drops of acetone to determine whether or not there is further precipitation . Also test another portion for complete precipitation with a solution containing barium ...
Strona 165
... complete . Yellow insoluble arsenious sulphide indicates the presence of arsenite . Filter the solution and test for complete precipitation with hydrogen sul- phide . Filter again if necessary . Detection of Arsenate . This step 15 ...
... complete . Yellow insoluble arsenious sulphide indicates the presence of arsenite . Filter the solution and test for complete precipitation with hydrogen sul- phide . Filter again if necessary . Detection of Arsenate . This step 15 ...
Strona 169
... complete . Filter , and divide the filtrate in two parts . 4. Detection of Chlorate . To one - half of the filtrate from ( 3 ) add 1 cc . of a dilute solution of sodium nitrite and 1 cc . of dilute nitric acid . A heavy white ...
... complete . Filter , and divide the filtrate in two parts . 4. Detection of Chlorate . To one - half of the filtrate from ( 3 ) add 1 cc . of a dilute solution of sodium nitrite and 1 cc . of dilute nitric acid . A heavy white ...
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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