Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 3
... boiling with sulphuric acid , and it is almost impossible to filter it owing to the form in which it separates . These difficulties are easily overcome if the acid is neutralised with ammonia in very slight excess . When precipitated ...
... boiling with sulphuric acid , and it is almost impossible to filter it owing to the form in which it separates . These difficulties are easily overcome if the acid is neutralised with ammonia in very slight excess . When precipitated ...
Strona 4
... boiling or by means of a reducing agent . A quantitative method of separating niobic and tantalic acid from all ... boiled with hot In this liquid are contained as precipitates : — Tantalic or niobic acid , stannic acid , lead sulphate ...
... boiling or by means of a reducing agent . A quantitative method of separating niobic and tantalic acid from all ... boiled with hot In this liquid are contained as precipitates : — Tantalic or niobic acid , stannic acid , lead sulphate ...
Strona 5
... boiled with sulphurous acid as described above . If the boiling is continued for some time - about half - an - hour- the tin is completely precipitated as metastannic acid with the acid earths . It is then removed by means of warm ...
... boiled with sulphurous acid as described above . If the boiling is continued for some time - about half - an - hour- the tin is completely precipitated as metastannic acid with the acid earths . It is then removed by means of warm ...
Strona 6
... boiling to a volume of less than 10 cc . , or to about 5 cc . , requiring about ten minutes . Thirty cc . of hot water are added , the contents boiled for five minutes , and then filtered into an Erlenmeyer flask , washing from four to ...
... boiling to a volume of less than 10 cc . , or to about 5 cc . , requiring about ten minutes . Thirty cc . of hot water are added , the contents boiled for five minutes , and then filtered into an Erlenmeyer flask , washing from four to ...
Strona 7
... boiling solution , followed by titration with permanganate . Preliminary experiments were made to demonstrate that sulphur dioxide has no reducing action on uranyl solutions , and that the titration of vanadium solutions when reduced ...
... boiling solution , followed by titration with permanganate . Preliminary experiments were made to demonstrate that sulphur dioxide has no reducing action on uranyl solutions , and that the titration of vanadium solutions when reduced ...
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