Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 3
... passed into solution was removed by precipita- tion with hydrogen sulphide . The filtrate was freed from hydrogen sulphide by boiling , and the rare earths were repeated until the second fractional precipitate of hydroxides of the ...
... passed into solution was removed by precipita- tion with hydrogen sulphide . The filtrate was freed from hydrogen sulphide by boiling , and the rare earths were repeated until the second fractional precipitate of hydroxides of the ...
Strona 5
... passing this point , showed peculiar behaviour in that it did not rise in a straight line . This was probably due to slight ... passed in through a small tube inserted from above . A platinum wire extending down a short distance into the ...
... passing this point , showed peculiar behaviour in that it did not rise in a straight line . This was probably due to slight ... passed in through a small tube inserted from above . A platinum wire extending down a short distance into the ...
Strona 18
... passed through g and later through f to c , where it mixed with the emanation . This arrangement avoids bringing the emanation into contact with any stopcock grease , which caused Cameron and Ramsay much trouble in their early ...
... passed through g and later through f to c , where it mixed with the emanation . This arrangement avoids bringing the emanation into contact with any stopcock grease , which caused Cameron and Ramsay much trouble in their early ...
Strona 22
... passed away , and the tendency to - day is towards a great and greater measure of co - operation . I can conceive of no more useful form of co - operation than that represented by the combined efforts of the Chinese , with their great ...
... passed away , and the tendency to - day is towards a great and greater measure of co - operation . I can conceive of no more useful form of co - operation than that represented by the combined efforts of the Chinese , with their great ...
Strona 28
... passed through the filtrate to remove the slight amount of mercury that had been dissolved , the solution was again filtered , the hydrogen sulphide was removed by boiling , and the rare earths were precipitated by oxalic acid . The ...
... passed through the filtrate to remove the slight amount of mercury that had been dissolved , the solution was again filtered , the hydrogen sulphide was removed by boiling , and the rare earths were precipitated by oxalic acid . The ...
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