Chemical News and Journal of Industrial Science, Tomy 115-116Chemical news office., 1917 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 7
... solution in a quartz flask . The solution was digested with an excess of zinc in order to remove more strongly electro - positive metals , and after filtration through platinum sponge was evaporated to crystallisation , and the product ...
... solution in a quartz flask . The solution was digested with an excess of zinc in order to remove more strongly electro - positive metals , and after filtration through platinum sponge was evaporated to crystallisation , and the product ...
Strona 8
... SOLUTION OF METALS IN electrolyte was determined . This residue , while never large , was always appreciable . Although in every case the zinc sulphate residue was dissolved in sulphuric acid , returned to the cell , and electrolysis ...
... SOLUTION OF METALS IN electrolyte was determined . This residue , while never large , was always appreciable . Although in every case the zinc sulphate residue was dissolved in sulphuric acid , returned to the cell , and electrolysis ...
Strona 10
... solution under carefully regulated conditions as to temperature , rate of stirring , and position of the disc . Samples of the solution , which was initially 600 cc . in volume , were taken at convenient intervals with a 20 cc . pipette ...
... solution under carefully regulated conditions as to temperature , rate of stirring , and position of the disc . Samples of the solution , which was initially 600 cc . in volume , were taken at convenient intervals with a 20 cc . pipette ...
Strona 20
... solution of tin , the solution remaining in the apparatus ( and containing a large excess of ferric sulphate ) was always found to give a brown precipitate with hydro- gen sulphide , even after standing over night . Again , a mixture of ...
... solution of tin , the solution remaining in the apparatus ( and containing a large excess of ferric sulphate ) was always found to give a brown precipitate with hydro- gen sulphide , even after standing over night . Again , a mixture of ...
Strona 21
... solution of zinc free from the disturbing influence of an evolution of hydrogen , which was given off in appreciable quantity even in ferric sulphate solutions to which no acid had been added . It has been shown in a previous paper ( Am ...
... solution of zinc free from the disturbing influence of an evolution of hydrogen , which was given off in appreciable quantity even in ferric sulphate solutions to which no acid had been added . It has been shown in a previous paper ( Am ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic alcohol alkali ammonia amount amylase analysis analytical annealing apparatus atomic B.Sc British calcium carbon cent Chem CHEMICAL NEWS Office chemistry chemists chert chloride colloidal colour compounds concentration containing copper crystallisation determined dilute dissolved distilled dyes dysprosium effect Engineering erbium evaporated experiments Explosives Farringdon Street ferric filtered fractions glass grains grms heat holmium hydrochloric acid hydrogen hydrogen peroxide hydroxide increase industry Institution iron J. J. THOMSON laboratory lead liquid London manufacture material matter metal method mixture molar Newcastle Street nickel nitrate nitric acid nitrile nitrogen obtained oxide oxidising paper peroxide phosphate potassium precipitate present production Prof pure pyrites reaction reagent Research salt samples scientific Society sodium sodium hydroxide soil soluble solution starch steel substances sulphate sulphide sulphuric acid superphosphate supply Table temperature tion toluene trinitrotoluene velocity volume weight zinc ΙΟ