Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 164
... drops of ferric chloride . A blue precipitate of ferric ferro- cyanide indicates the presence of ferro- cyanide ion ... drop by drop a moderately concentrated solution of cadmium nitrate until precipitation is complete . If any pre ...
... drops of ferric chloride . A blue precipitate of ferric ferro- cyanide indicates the presence of ferro- cyanide ion ... drop by drop a moderately concentrated solution of cadmium nitrate until precipitation is complete . If any pre ...
Strona 165
... drops of a dilute solution of potassium permanganate and warm the mixture . If oxalate is present , the red colour is bleached due to the reduc- ing action of the oxalate upon the perman- ganate ion . 12. Detection of Sulphate . Add an ...
... drops of a dilute solution of potassium permanganate and warm the mixture . If oxalate is present , the red colour is bleached due to the reduc- ing action of the oxalate upon the perman- ganate ion . 12. Detection of Sulphate . Add an ...
Strona 168
... drops of freshly prepared aqua regia and shake until the violet colour dis- A brown colour indicates the appears ... drop by drop a concentrated solution of calcium nitrate ( same concen- tration ) until precipitation is complete . If no ...
... drops of freshly prepared aqua regia and shake until the violet colour dis- A brown colour indicates the appears ... drop by drop a concentrated solution of calcium nitrate ( same concen- tration ) until precipitation is complete . If no ...
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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