Chemical News and Journal of Physical Science, Tom 114Chemical news office., 1916 |
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Strona 4
... dilute sulphuric acid . The ether layer containing the carbinol was separated , and dried over potassium car- bonate . The ether was then distilled off and the residue fractionated . 45 grms . of carbinol were thus obtained , boiling at ...
... dilute sulphuric acid . The ether layer containing the carbinol was separated , and dried over potassium car- bonate . The ether was then distilled off and the residue fractionated . 45 grms . of carbinol were thus obtained , boiling at ...
Strona 12
... dilute acid to dissolve the metal and then add concen- trated acid to effect the solution of the carbon . MISCELLANEOUS . Rubber from Alcohol . - L . I. Ostromislenskij de- scribes in the Petrograd Agricultural Gazette a process ...
... dilute acid to dissolve the metal and then add concen- trated acid to effect the solution of the carbon . MISCELLANEOUS . Rubber from Alcohol . - L . I. Ostromislenskij de- scribes in the Petrograd Agricultural Gazette a process ...
Strona 15
... diluting acid of sp . gr . = 1.84 with an equal volume of water ) , adding a little nitric acid to oxidise traces of organic matter which discoloured the THE SEPARATION OF THORIUM FROM IRON liquid , and warming until nitric acid could ...
... diluting acid of sp . gr . = 1.84 with an equal volume of water ) , adding a little nitric acid to oxidise traces of organic matter which discoloured the THE SEPARATION OF THORIUM FROM IRON liquid , and warming until nitric acid could ...
Strona 16
... dilute solution of the nitrate a considerable excess of oxalic acid . The oxalate was collected upon a disc of filter - paper in a porcelain Gooch crucible , and after being dried was ignited to oxide in a platinum boat in an elec ...
... dilute solution of the nitrate a considerable excess of oxalic acid . The oxalate was collected upon a disc of filter - paper in a porcelain Gooch crucible , and after being dried was ignited to oxide in a platinum boat in an elec ...
Strona 20
... dilution of the sample containing 15 to 2 per cent " sulphide sulphur . " Mix , wash down with about 25 cc . water ... diluting to about 900 cc . , adding sufficient concen- trated ammonia to obtain a clear solution , and then diluting ...
... dilution of the sample containing 15 to 2 per cent " sulphide sulphur . " Mix , wash down with about 25 cc . water ... diluting to about 900 cc . , adding sufficient concen- trated ammonia to obtain a clear solution , and then diluting ...
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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