Chemical News and Journal of Industrial Science, Tomy 125-126Chemical news office., 1923 |
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Strona 3
... amounts of 95 per cent . ethyl alcohol and refluxed for one hour after mixing . The solution is evaporated to a ... amount of purplish - brown material , the dry weight of which was less than 1 g . was ob- tained . The mass appeared ...
... amounts of 95 per cent . ethyl alcohol and refluxed for one hour after mixing . The solution is evaporated to a ... amount of purplish - brown material , the dry weight of which was less than 1 g . was ob- tained . The mass appeared ...
Strona 6
... amount of experimental work , but it does not happen to be in pure science . To experiment in pure science is luxury work , and few can afford to do this . Successful experimentation in this field is nevertheless exceedingly difficult ...
... amount of experimental work , but it does not happen to be in pure science . To experiment in pure science is luxury work , and few can afford to do this . Successful experimentation in this field is nevertheless exceedingly difficult ...
Strona 12
... amount of experimental work , but it does not happen to be in pure science . To experiment in pure science is luxury work , and few can afford to do this . Successful experimentation in this field is nevertheless exceedingly difficult ...
... amount of experimental work , but it does not happen to be in pure science . To experiment in pure science is luxury work , and few can afford to do this . Successful experimentation in this field is nevertheless exceedingly difficult ...
Strona 14
... amount of aluminium in commercial samples is described by L. Losana in Giornale di Chemica Industriale ed Applicata . 0.5 to 1.0 gm . of the metal is heated with caustic potash solution in a flask through which a current of air is drawn ...
... amount of aluminium in commercial samples is described by L. Losana in Giornale di Chemica Industriale ed Applicata . 0.5 to 1.0 gm . of the metal is heated with caustic potash solution in a flask through which a current of air is drawn ...
Strona 20
... amount of yellow solid dis- tilled over with a vile smelling liquid . The solid was filtered off and dissolved in con- centrated hydrochloric acid , from which it was precipitated with water . It was recrys- tallised from hot alcohol ...
... amount of yellow solid dis- tilled over with a vile smelling liquid . The solid was filtered off and dissolved in con- centrated hydrochloric acid , from which it was precipitated with water . It was recrys- tallised from hot alcohol ...
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