Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 212
... acid has to be added to increase the elec- trical conductivity . In technical practice the use of a caustic soda or caustic potash electrolyte is universal since acid corrodes the plant . Oxygen is produced at the same time as hydrogen ...
... acid has to be added to increase the elec- trical conductivity . In technical practice the use of a caustic soda or caustic potash electrolyte is universal since acid corrodes the plant . Oxygen is produced at the same time as hydrogen ...
Strona 213
... acid on iron , and we read of 80 tons of iron , together with 190 tons of sulphuric acid being required to fill a captive balloon at the Paris Exhibition in 1878 . The commercial practicable methods of making hydrogen for airships are ...
... acid on iron , and we read of 80 tons of iron , together with 190 tons of sulphuric acid being required to fill a captive balloon at the Paris Exhibition in 1878 . The commercial practicable methods of making hydrogen for airships are ...
Strona 224
... acid , with or without sul- phates such as alkali sulphates or bisul- phates , in such quantity that excess of free acid remains after completion of the reac- tion , and of a strength insufficient to effect any solution of the calcium ...
... acid , with or without sul- phates such as alkali sulphates or bisul- phates , in such quantity that excess of free acid remains after completion of the reac- tion , and of a strength insufficient to effect any solution of the calcium ...
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