Chemical News and Journal of Physical Science, Tom 114Chemical news office., 1916 |
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Strona 3
... filter - paper in a 0-2 per cent alcoholic solution of curcumin . The procedure was as follows : -About 3 grms . of a dried sample were treated with sufficient saturated lime - water to make the reaction alkaline . After a thorough ...
... filter - paper in a 0-2 per cent alcoholic solution of curcumin . The procedure was as follows : -About 3 grms . of a dried sample were treated with sufficient saturated lime - water to make the reaction alkaline . After a thorough ...
Strona 14
... FILTER PAPERS PORCELAIN CRUCIBLES COMBUSTION CLASS TUBING PORCELAIN EVAPORATING BASINS SODA GLASS TUBING THERMOMETERS CLASS BEAKERS TEST - TUBES PURE NICKEL CRUCIBLES AND BASINS , & c . Ready for DELIVERY from IMMEDIATE F. E. BECKER ...
... FILTER PAPERS PORCELAIN CRUCIBLES COMBUSTION CLASS TUBING PORCELAIN EVAPORATING BASINS SODA GLASS TUBING THERMOMETERS CLASS BEAKERS TEST - TUBES PURE NICKEL CRUCIBLES AND BASINS , & c . Ready for DELIVERY from IMMEDIATE F. E. BECKER ...
Strona 15
... filter and washed with a 1 per cent solution of ammonium acetate . The moist paper with its contents was then placed in a tared platinum crucible , dried at 100-110 ° C. , and ignited first with the Bunsen burner and then with the blast ...
... filter and washed with a 1 per cent solution of ammonium acetate . The moist paper with its contents was then placed in a tared platinum crucible , dried at 100-110 ° C. , and ignited first with the Bunsen burner and then with the blast ...
Strona 16
... filter - paper in a porcelain Gooch crucible , and after being dried was ignited to oxide in a platinum boat in an elec- trically heated porcelain tube , pains being taken to avoid heating the boat to a temperature at which platinum ...
... filter - paper in a porcelain Gooch crucible , and after being dried was ignited to oxide in a platinum boat in an elec- trically heated porcelain tube , pains being taken to avoid heating the boat to a temperature at which platinum ...
Strona 20
... filter into a 250 cc . volumetric flask and wash with hot water . Cool in water to room temperature , add o'5 to I'O cc . of a 10 per cent solution of crystallised disodium phosphate , make to the mark , shake well and filter through a ...
... filter into a 250 cc . volumetric flask and wash with hot water . Cool in water to room temperature , add o'5 to I'O cc . of a 10 per cent solution of crystallised disodium phosphate , make to the mark , shake well and filter through a ...
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acetate acetone added aluminium aluminium chloride ammonia ammonium amount analysis antimony apparatus applied B.Sc benzene boiling boron British bromine carbon carotin cent Chem CHEMICAL NEWS Office chemist Chemistry chloric acid College colour commercial compounds concentrated containing copper course crucible D.Sc determined dilute dissolved distillation dyeing Engineering ether ethyl alcohol evaporated experiments extract Farringdon Street ferric chloride filter filtrate flask glass heated hydrochloric acid hydrogen hydrolysis industry insoluble investigation iodide iron Laboratory Lectures London manufacture material metal method mixture monazite Newcastle Street nitrate nitric acid nitrogen obtained organisation oxide paper phosphate physical plant platinum potassium practical precipitate prepared present Price production Prof pure quantity radium reaction reagent residue salt samples scientific silica Society sodium soluble solution starch Students substances sulphate sulphide sulphuric acid Table Technical temperature thorium tion toluene trade Trinitrotoluene tube volume washed weight