Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 1
... extracts were recognised as of extreme importance , and by their aid English Chemists were easily placed au courant of the latest researches and discoveries of their foreign fellow workers . a new The great chemists and physicists of ...
... extracts were recognised as of extreme importance , and by their aid English Chemists were easily placed au courant of the latest researches and discoveries of their foreign fellow workers . a new The great chemists and physicists of ...
Strona 3
... extracting the precipitate with hot soda solution , because the solution of the acid earths proceeds comparatively slowly , and because the filtration and washing of the pre- cipitates containing iron takes so much time that the acid ...
... extracting the precipitate with hot soda solution , because the solution of the acid earths proceeds comparatively slowly , and because the filtration and washing of the pre- cipitates containing iron takes so much time that the acid ...
Strona 4
... extract of the melt , and the liquid was boiled . The precipitated acid earths were filtered , washed with hot sulphuric acid containing sulphurous acid , and a part of the precipitate was boiled with hydrochloric acid ; the solution ...
... extract of the melt , and the liquid was boiled . The precipitated acid earths were filtered , washed with hot sulphuric acid containing sulphurous acid , and a part of the precipitate was boiled with hydrochloric acid ; the solution ...
Strona 10
... extract of this plant yielded , together with resinous products and a small amount of essential oil , the following compounds : -Ceryl alcohol ; a phytosterol , C20H34O , apparently identical with rhamnol ; palmitic , stearic , oleic ...
... extract of this plant yielded , together with resinous products and a small amount of essential oil , the following compounds : -Ceryl alcohol ; a phytosterol , C20H34O , apparently identical with rhamnol ; palmitic , stearic , oleic ...
Strona 11
... extraction with ether , the solution is washed , dried , and the ether distilled . Fractionation of the residual liquid gives ethyl a - hydroxyisobutyrate , boiling at 145-150 ° . After distillation over phosphoric oxide , it boils at ...
... extraction with ether , the solution is washed , dried , and the ether distilled . Fractionation of the residual liquid gives ethyl a - hydroxyisobutyrate , boiling at 145-150 ° . After distillation over phosphoric oxide , it boils at ...
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