Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 167
... chloride solution . The red colour of ferric thiocyanate proves the presence of cyanide . 7. Separation of Thiocyanate and Chloride by Reduction of Their Silver Salts . Transfer the residue from ( 5 ) to a small beaker and add 15 cc ...
... chloride solution . The red colour of ferric thiocyanate proves the presence of cyanide . 7. Separation of Thiocyanate and Chloride by Reduction of Their Silver Salts . Transfer the residue from ( 5 ) to a small beaker and add 15 cc ...
Strona 168
hydrochloric acid and add 1 cc . of a dilute solution of ferric chloride . A red solution containing ferric thiocyanate indicates the presence of thiocyanate . 9. Detection of Chloride . To the re- mainder of the filtrate from ( 7 ) add ...
hydrochloric acid and add 1 cc . of a dilute solution of ferric chloride . A red solution containing ferric thiocyanate indicates the presence of thiocyanate . 9. Detection of Chloride . To the re- mainder of the filtrate from ( 7 ) add ...
Strona 169
... chloride pre- cipitates the excess of lead and silver . Furthermore , it has been found that the presence of sodium chloride greatly in- creases the sensitivity of the test . Sensitivity of the Acetate Test . Conc . of Ac- ( g . per cc ...
... chloride pre- cipitates the excess of lead and silver . Furthermore , it has been found that the presence of sodium chloride greatly in- creases the sensitivity of the test . Sensitivity of the Acetate Test . Conc . of Ac- ( g . per cc ...
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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