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Strona 161
As driers the following were examined : lead monoxide ( PbO ) , dioxide ( Pb0 . )
and minium ( Pb , 0 , ) , cobaltous and cobaltic oxides ( CoO and Co , 0z ) ,
ferrous and ferric oxides ( FeO and Fe , O , ) , and manganic oxide ( Mn . , 0 , ) .
As driers the following were examined : lead monoxide ( PbO ) , dioxide ( Pb0 . )
and minium ( Pb , 0 , ) , cobaltous and cobaltic oxides ( CoO and Co , 0z ) ,
ferrous and ferric oxides ( FeO and Fe , O , ) , and manganic oxide ( Mn . , 0 , ) .
Strona 168
... to include all elements . There are a number of interesting facts revealed by a
study of this chart which lead the author to the conclusion that the number of
possible helium particles in the nucleus cannot exceed one - half the atomic
number .
... to include all elements . There are a number of interesting facts revealed by a
study of this chart which lead the author to the conclusion that the number of
possible helium particles in the nucleus cannot exceed one - half the atomic
number .
Strona 172
LEAD , TIN AND ZINC PRODUCTS INDUSTRY IN CANADA . During the past few
years the production of lead and zinc in Canada has been making notable
increases , particularly in British Columbia , and there has been until recently an
...
LEAD , TIN AND ZINC PRODUCTS INDUSTRY IN CANADA . During the past few
years the production of lead and zinc in Canada has been making notable
increases , particularly in British Columbia , and there has been until recently an
...
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