Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 164
... colour of the dry turmeric paper will be orange red ; and , when the paper is touched with a stirring rod which has been moistened with dilute sodium hydroxide solution , the colour will change to dark green . Separation of Second Sub ...
... colour of the dry turmeric paper will be orange red ; and , when the paper is touched with a stirring rod which has been moistened with dilute sodium hydroxide solution , the colour will change to dark green . Separation of Second Sub ...
Strona 168
... colour remains in the carbon disulphide layer , add not more than two drops of freshly prepared aqua regia and shake until the violet colour dis- A brown colour indicates the appears . presence of bromide . GROUP THREE . Analysis of the ...
... colour remains in the carbon disulphide layer , add not more than two drops of freshly prepared aqua regia and shake until the violet colour dis- A brown colour indicates the appears . presence of bromide . GROUP THREE . Analysis of the ...
Strona 170
... colour Yellow colour Solution ( cc . ) 0.000590000 1 0.000059000 1 0.000005900 1 No result 0.000029500 1 No result 0.000044100 1 No result 0.000029500 2 0.000005900 2 0.000000590 2 Yellow colour Yellow colour No result Literature Cited ...
... colour Yellow colour Solution ( cc . ) 0.000590000 1 0.000059000 1 0.000005900 1 No result 0.000029500 1 No result 0.000044100 1 No result 0.000029500 2 0.000005900 2 0.000000590 2 Yellow colour Yellow colour No result Literature Cited ...
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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