Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 3
... alkaline solution of the acid earths , niobium and tantalum are best precipitated with acetic acid in the hot solution ; if , however , a mineral acid is used ammonia must subsequently be added till the liquid gives an alkaline reaction ...
... alkaline solution of the acid earths , niobium and tantalum are best precipitated with acetic acid in the hot solution ; if , however , a mineral acid is used ammonia must subsequently be added till the liquid gives an alkaline reaction ...
Strona 11
... alkaline solution has been studied , and evidence was brought forward to show that under these conditions sulphinic acids are formed . 292. " Chlorination and Bromination of Acyanilides . Part II . The Action of the Halogen Acids on ...
... alkaline solution has been studied , and evidence was brought forward to show that under these conditions sulphinic acids are formed . 292. " Chlorination and Bromination of Acyanilides . Part II . The Action of the Halogen Acids on ...
Strona 13
... Alkaline Melts . 1. Fusion with Sodium Carbonate . - We confirmed in many experiments the results of the investigations of Marignac and of Wöhler on the property of niobium of retaining a considerable amount ( 8 per cent ) of the ...
... Alkaline Melts . 1. Fusion with Sodium Carbonate . - We confirmed in many experiments the results of the investigations of Marignac and of Wöhler on the property of niobium of retaining a considerable amount ( 8 per cent ) of the ...
Strona 15
... alkaline solution , in the course of half - an - hour a small amount of white pre- cipitate formed , and was filtered off . It gave distinctly the sulphuric acid + hydrogen peroxide reaction , while the filtrate was absolutely free from ...
... alkaline solution , in the course of half - an - hour a small amount of white pre- cipitate formed , and was filtered off . It gave distinctly the sulphuric acid + hydrogen peroxide reaction , while the filtrate was absolutely free from ...
Strona 23
... Alkaline Acid Carbonates . - M . de Forcrand . - When dilute solutions of the carbonates of potassium , rubidium , and cæsium are left exposed to the air for some weeks they all absorb carbon dioxide , and the author has subjected this ...
... Alkaline Acid Carbonates . - M . de Forcrand . - When dilute solutions of the carbonates of potassium , rubidium , and cæsium are left exposed to the air for some weeks they all absorb carbon dioxide , and the author has subjected this ...
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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