Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 3
... washed with water containing ammonia ( one - half per cent ) it is perfectly free from sulphuric acid after the first ignition . Precipitated niobic , tantalic , or titanic acid must never be washed with pure water , for the liquid ...
... washed with water containing ammonia ( one - half per cent ) it is perfectly free from sulphuric acid after the first ignition . Precipitated niobic , tantalic , or titanic acid must never be washed with pure water , for the liquid ...
Strona 4
... washed with hot sulphuric acid containing sulphurous acid , and a part of the precipitate was boiled with hydrochloric acid ; the solution thus obtained was quite free from iron . To test for manganese the same procedure was followed ...
... washed with hot sulphuric acid containing sulphurous acid , and a part of the precipitate was boiled with hydrochloric acid ; the solution thus obtained was quite free from iron . To test for manganese the same procedure was followed ...
Strona 5
... washed , and by the colour of the remaining acid earths it may be seen whether they contain lead . It is thus ... washes out practically IN WINES AND VINEGARS . * By H. C. GORE , Assistant Chemist , Division of Foods . In this ...
... washed , and by the colour of the remaining acid earths it may be seen whether they contain lead . It is thus ... washes out practically IN WINES AND VINEGARS . * By H. C. GORE , Assistant Chemist , Division of Foods . In this ...
Strona 6
... washed six times with a 2 per cent solution of potassium nitrate , or until free of acid , and is then returned to the flask and titrated with the standard sodium hydroxide solution . This standard solution is con- veniently made eqaal ...
... washed six times with a 2 per cent solution of potassium nitrate , or until free of acid , and is then returned to the flask and titrated with the standard sodium hydroxide solution . This standard solution is con- veniently made eqaal ...
Strona 7
... washed with hot water . The precipitate is re - dissolved in the smallest possible amount of sulphuric acid , and re - precipitated with an excess of sodium carbonate in order to insure complete extraction of the uranium and vanadium ...
... washed with hot water . The precipitate is re - dissolved in the smallest possible amount of sulphuric acid , and re - precipitated with an excess of sodium carbonate in order to insure complete extraction of the uranium and vanadium ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic acid action alcohol alkaline aluminium ammonia ammonium amount analysis apparatus atomic weight B.Sc barium boiling bromide calcium calculated carbon dioxide cent Chem chemical Chemistry chemists chloride colour comet compounds concentrated condensation containing copper crystalline D.Sc decomposed derivatives determination dilute dissolved distilled ether ethyl evaporated excess experiments filter filtrate flask formed formula gives gold grms heated hydrochloric acid hydrogen hydroxide invertase iodide iodine iron J. J. Thomson ketone liquid melting metal method mgrms mineral mixture molecular molecules muriatic niobic nitrate nitric acid obtained oxide oxidised oxygen paper perchloric acid permanganate phosphorus platinum potassium precipitate prepared present Prof pure quantity reaction reduced residue salt sample scandium silver phosphate Society sodium sodium carbonate soluble substance sugar sulphate sulphide sulphuric acid tantalic acid tantalum telluride tellurium temperature theory tion titanic acid titanium tube vanadium vapour washed ytterbium zinc